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Patients infected by strep feel betrayed by silence over outbreak

THUNDER BAY — As the winds that blow off the northern shores of Lake Superior grow colder, the streets and trees of Thunder Bay become more bare.

It’s a natural passing of the seasons, but in a community long plagued by unemployment, drug use and doctor shortages, health officials have expressed concern that the winter season may strengthen the storm of invasive Group A streptococcus, also known as IGAS, that has reached this northern community.

About 75 people in the area surrounding and including this city of about 109,000 have become infected and at least 10 have died. Health officials have known of the outbreak of contagious bacteria for months but informed the public only last week.

The eye of the strep storm has sat over the city’s south core, where drug users take shelter from the cold in abandoned buildings.

In those crowded dens on Simpson Street, where bathrooms, needles and pipes are shared, IGAS can spread like wildfire and the Thunder Bay District Health Unit has defended its silence about the outbreak by saying the risk of infection was concentrated there, not among the general population.

Lee Sieswerda, Thunder Bay District Health Unit’s epidemiologist, has said about 38 per cent of those infected were intravenous drug users, and 15 per cent were “underhoused.”

But according to Elizabeth Alvarez, who was the health unit’s associate medical officer of health until June, when her contract wasn’t renewed, the decision not to go public was initially based on the widespread group of people who’d become infected, which included children and the elderly. She said there were concerns that an announcement would create larger crowds in the city’s only emergency room, which has the largest volume of patients in Ontario.

“I felt that we should have gone earlier to the media, I’m a big believer in getting things out. But others worried that there was nothing to pinpoint a cause or a source,” she said recently in an interview from her new home in Hamilton.

The heart of the city’s south core is an aging mall, the Victoriaville Centre. Rows of discount clothing stores bathed in yellow light lead to a central food court where the elderly, mothers with strollers, drug dealers and drug users converge at square tables that have been bolted to the ground.

Blocks away, the grandest houses in Thunder Bay – large brick three-storey edifices with ornate porches – sit among old spruce and maple trees.

In this city that has hemorrhaged jobs and money over the past decade with the decline of the lumber industry, discarded syringes are a commonplace sight.

Sean Lee, a 30-year-old drug user, can recall the weekend he contracted a strep infection. It was August and he was “slumming it” on Simpson Street, injecting his veins with cocaine.

“I wish I’d known, I would have been more careful,” he said recently, seated at one of those square tables in the Victoriaville Centre. The strep ravaged his body for weeks and he lost so much weight his skin encases to his 6-foot-2 frame like cling-wrap.

But Annette Swerdelyk will likely never know how she caught the infection that nearly took her leg, and her life. The 52-year-old mother of two plays over and over again in her head the day in late May when she grazed her knee outside a laundromat. She had no idea an aggressive strain of streptococcus was moving through the area, as health officials had decided that the bacteria posed a low risk to members of the “general population” like Ms. Swerdelyk.

Her knee swelled for several days before she went to the emergency room, where doctors told her they were “gridlocked” with patients and sent her home with a prescription for painkillers and antibiotics. She returned the next day, her knee swollen to twice its size, the pain unbearable. She was admitted to hospital and quarantined.

“I thought I was going to die, I’m lucky I didn’t,” she said recently, seated on a couch in her home gingerly touching the large purple scar above her knee-cap. “They were talking about amputating my leg at the hip. I was … [in my] hospital bed crying like a baby.”

Ms. Swerdelyk spent nearly two weeks in hospital and was sent home with a pick-line that injected antibiotics directly into her bloodstream.

A faint purple tinge lingers on her left leg, a sense of betrayal lingers in her mind: It was only days ago that she picked up a local newspaper and realized she’d been part of an outbreak.

“When you have something that serious going on, the public needs to know,” she said, her brown eyes narrowing. “They’re stereotyping who gets this disease and it’s not true.”

Streptococcus is a fairly common bacteria, but the underlying causes of IGAS outbreaks remain unknown, Dr. Alvarez said. When she left the investigation, the health unit was researching whether residents of northern communities had increased susceptibility to the infection, she said, but like Ms. Swerdelyk, it is likely the Thunder Bay region will never know why it was struck.

With a report from Canadian Press

Dating website launched for STI sufferers

Dating when you have an incurable sexually transmitted infection is a fraught business, with sufferers facing ignorance, humiliation and rejection. Three women talk to Louise Millar about their experiences – and an initiative that offers new hope

Dating can be complicated enough at the best of times. Add to that the worry of having to tell a new partner that you have an incurable sexually transmitted infection and it can become almost inconceivable. When should you tell your date - and how? How do you know they won’t tell anyone? And what judgement will they make about you?

When Jessica, then a 35-year-old single mother of two, was diagnosed with genital herpes, she found herself facing all of these questions. With one man she decided to leave it two weeks before telling him. His reaction left her traumatised. ‘He said, “Why did you not tell me at the start? How do I know I can trust you now? For all I know, if we had slept together, I might have woken up and found my wallet and car keys missing.” I was distraught and broken-hearted.’

Jessica’s experience is not unusual. With visits to British genito-urinary medicine clinics doubling to 1.8 million between 2002 and 2006, and rises in the recorded cases of genital herpes, human papilloma virus (HPV) and HIV, increasing numbers of women are having to navigate the complex world of dating with a sexually transmitted infection (or STD, sexually transmitted disease, as it is also known).

Jessica contracted herpes from a long-term partner who had omitted to tell her about his condition. ‘We always used condoms, then one day he asked me if we could stop. I found out afterwards he was desperate to experience sex without a condom again. That far into our relationship it didn’t occur to me that he might have herpes.’

Almost immediately, Jessica experienced the stigma that can be attached to the disease. ‘Even my GP was ignorant about the condition. He told me [wrongly] that I couldn’t share soap or towels with my children. It frightened the life out of me. I went home and burst into tears. I felt dirty and contaminated and disgusted with myself. When I started dating again I realised that this kind of ignorance was everywhere. People were like, “Oh, my God, I don’t want [to date] one of them.” I felt nobody wanted to touch me. It was like having leprosy.’

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Now 51, Jessica is single again, having spent 15 years dating with herpes. ‘What other personal thing would you tell people so early on in a relationship? I’ve tried telling people at the start and seen them walk away. The other option is to have protected sex then tell them afterwards, but that seems underhand.’

Fortunately, however, there is now a breakthrough for women like Jessica. New dating websites are springing up designed to give a choice to single people with STIs. The idea is that, along with your favourite films and hair colour, you now also list your condition. By the time a potential date gets in contact, you can be sure he already knows about it.

‘We set up our site in September 2006, after recognising the issues that people were facing,’ says Sheelagh Caygill from Gateshead, a co-founder of the first website for British people with STIs, datepositive.net. ‘But we had no idea how much demand there was. Within hours of a small story appearing in a newspaper, the website went crazy. Now we have 3,000 members and it’s growing all the time.’

Some of Caygill’s female members told her about their fear of rejection. ‘Many have been judged harshly - more so than men,’ she says, ‘and even been accused of being “loose women”. There was almost a sense of “It serves you right for sleeping round.” There is still that double standard in society.’

Christine Webber, a psychotherapist and relationships expert, explains. ‘You can’t, in a couple of generations, fly in the face of all the conditioning that has existed for thousands of years. Until the pill in the 1960s, most women strenuously avoided having sex outside marriage because it had dire economic, career and relationship consequences, and in many ways those old stereotypes still exist today.’

Caygill says her website aims to remove those pressures. ‘You move right past your STI. Otherwise, you can get stuck on “Oh, herpes - can I get it from your towel?” and so on. It opens up a new world to people. It allows them to return to that time in their life when they could date without having to think about it.’

Specialist dating websites can also eliminate the stress of worrying about infecting a partner during sex. Sarah, 33, a care worker from Oxfordshire, joined Date Positive after making the decision to date only men who shared her condition. ‘I was diagnosed with HIV in 2001,’ she explains. ‘It was a real shock. I had maybe five or six boyfriends in my twenties and didn’t always practise safe sex. You never think it’ll happen to you. When I was diagnosed it turned out I’d had it a long time. As a result, I never knew who I had contracted it from.’

Junkies stay hooked behind bars

Injection-drug users who are incarcerated are less likely to kick their habit than those who remain in the community, new Canadian research shows.

In fact, there is strong evidence that addicts who end up in jail are more likely to stay hooked longer and less likely to be treated for addiction, according to the research published in the medical journal Addiction.

“The simple explanation is that by incarcerating people, you limit their access to help,” Evan Wood, a researcher at the B.C. Centre for Excellence in HIV-AIDS, said in an interview.

“While it may be politically popular to jail injection-drug users, it’s not a very effective public health measure,” he said.

The study followed 1,603 intravenous drug users in Vancouver for almost a decade. During the study period, 842 of them (just over half) stopped injecting drugs for a period of at least six months.

The data were derived from the Vancouver Injection Drug User Study, which has been ongoing since 1996. Two-thirds of the users spent time in jail at some point, mostly for drug-related crimes.

Researchers also tried to determine the effect of incarceration on drug use by focusing on the minority of IV drug users - one in five - who were incarcerated for the first time during the study period.

Incarceration was defined as “being in detention, prison or jail overnight or longer in the previous six months.”

The paper showed that pre- and post-incarceration drug use was virtually the same. In other words, jailing drug addicts did not help them overcome addiction.

Researchers found that those who were jailed were 57 per cent less likely to give up drugs for a period of six months or more, compared with those who were not jailed.

The study also found that IV drug users with access to methadone programs (methadone is a drug used to wean heroin users from their addiction) were 62 per cent more likely to kick their drug habit for a period of six months or more. Methadone programs are available in the community but not in prison.

“This is a simple research paper, but it has an important message,” Dr. Wood said.

“We need to look at the most effective solutions for dealing with drug crime,” he said. “Locking up drug addicts is ineffective.”According to the paper, 30 per cent of female prisoners and 14 per cent of male prisoners in Canadian federal penitentiaries are serving sentences for drug-related offences. The numbers are probably higher in provincial jails, but there are no good data.

Dr. Wood said the vast majority of people in the study were jailed for petty crimes, mostly related to theft as a means of getting money to feed their addiction.

The researcher said incarceration is very expensive and that money would be better spent on addiction treatment and rehabilitation programs.

“It’s appealing to the public that there is an element of punishment when crimes are committed, but the public can also recognize that addiction is a health issue,” Dr. Wood said.

He stressed that “no one is suggesting that violent criminals should not be locked up,” but said the vast majority of drug addicts are, at worst, petty thieves.

The study notes that drug use fell while people were in prison but it did not stop. (It is widely acknowledged that drugs like heroin, cocaine and crack are available in prison.) In fact, researchers concluded that there are no major differences in drug consumption patterns between those who were jailed and those not jailed.

The big difference was that IV drug users who remained in the community were more likely to get treatment and stop using drugs, at least temporarily.

There is also evidence that those who had been imprisoned engaged in more risky behaviours such as needle sharing. (There are no needle-exchange programs in Canadian prisons, though activists have been demanding them for years.) Earlier research showed that about 30 per cent of all new infections with HIV-AIDS occur in prison.

Olive oil may hold the key to weight loss

A”good” fat found in abundance in olive oil may provide one of the keys to appetite control and weight loss.

Oleic acid, a type of monounsaturated fat, suppresses hunger pangs and so can help prevent snacking between meals, according to researchers at the University of California, Irvine.

In a study involving lab mice, the researchers found that when oleic acid reaches the small intestine it is converted into a hormone called oleoylethanolamide, or OEA. This hormone, in turn, sends hunger-dampening signals to the brain. That means you can go longer without eating.

The findings, published in the journal Cell Metabolism, could open up new strategies for helping people lose weight, said Daniele Piomelli, who led the research effort.

Dr. Piomelli noted that previous studies have found that protein also plays a pivotal role in appetite control. And, in particular, a high-protein meal tends to be very filling and quickly sates the desire for food.

“If we can mix appropriate amounts of protein and fat [containing high levels of oleic acid], the net result could be very advantageous,” Dr. Piomelli said in an interview. “You would consume less in a single meal … and prolong the interval between eating.”

He also suggested that new medications could be developed to mimic the appetite-suppressing effects of oleic acid.

Avocados, soybeans, canola oil and a variety of other foods also contain oleic acid. But olive oil, which is one of the cornerstones of the heart-healthy Mediterranean diet, is especially rich in the stuff, Dr. Piomelli said.

NEW AND IMPROVED?

Newer is not necessarily better when it comes to schizophrenia medications.

Researchers recently tested three drugs on a group of children and adolescents diagnosed with schizophrenia. Two of the drugs, olanzapine (brand name Zyprexa) and risperidone (Risperdal), come from a newer class of medications known as atypical anti-psychotics. The third drug, molindone (Moban), is an older anti-psychotic.

The results, published in the American Journal of Psychiatry, surprised the researchers. The newer and more expensive drugs were no more effective at treating young people with schizophrenia than the older medication was. About 46 per cent of those prescribed risperidone, and 34 per cent on olanzapine reported an improvement. That compared with a 50-per-cent improvement rate for patients taking molindone.

What’s more, the newer drugs had a higher risk of causing certain side effects, including weight gain. Some study participants put on as much as 15 pounds in eight weeks.

Linmarie Sikich, who led the study at the University of North Carolina at Chapel Hill, said older medications are seldom used today because of the commonly held belief that the newer drugs are much better. “When we started the study, a lot of people really thought we were verging on the edge of unethical to treat kids with one of the older drugs.”

Dr. Sikich conceded that the older drugs are far from perfect and also carry the risk of serious side effects, including muscle stiffness, involuntary movements and feelings of restlessness.

But she said the study shows that the older medications should be tried more often, possibly as a first line of treatment.

BAD AIR, PAINFUL APPENDIX

A surprising new study has uncovered a possible link between air pollution and elevated rates of appendicitis.

The researchers reviewed the cases of 5,000 Calgary residents who were admitted to hospital for appendicitis between 1999 and 2006. These data were matched up with daily air pollution records.

The study found that hospital admissions for the painful condition rose by 15 per cent on the summer days that had the highest concentrations of nitrogen dioxide and ozone in the atmosphere, said the lead researcher, Gilaad Kaplan of the University of Calgary.

“I would call it a modest effect, meaning that it doesn’t explain every case of appendicitis we see, but it may explain a subset of them,” said Dr. Kaplan, who presented his findings in Orlando, Fla., this week at a scientific meeting of the American College of Gastroenterology.

Previous studies have found that air pollution poses a health risk to patients with pre-existing respiratory and heart conditions. But how could foul air inflame the appendix - an organ without apparent purpose that has mystified doctors for years?

“We really don’t have a good grasp of the root causes of appendicitis,” said Dr. Kaplan. He speculated that air pollution might somehow weaken the immune system, leaving a person vulnerable to infection.

BREAST MILK DRUG RISK

Health Canada has issued a warning about the risks posed to breastfed babies whose mothers are using medications that contain codeine.

Codeine is converted into morphine by the body. Some mothers’ bodies perform this biological function faster than others, producing a rapid spike in the amount of morphine in their breast milk. That means their babies could suffer a lethal morphine overdose.

Although such cases are rare, Health Canada says mothers should talk to their doctors before taking pain and cough medications containing codeine.

New research institute shines light on gastrointestinal diseases

They’re painful, debilitating diseases - but are often suffered in silence.

They plague up to 20 per cent of Canadians during their lifetime, yet they’re a taboo topic at dinner parties.

And despite their heavy burden on the health-care system, they rarely benefit from flashy fundraising galas or celebrity endorsements, like cancer or diabetes do.

Now a new research institute at McMaster University is helping to shine a light on diseases of the bowel, colon and intestine.

Aspirin may cut breast cancer risk

A new international study involving Canadian researchers is providing some of the most compelling evidence to date that anti-inflammatory drugs such as Aspirin and Advil may reduce a woman’s risk of developing breast cancer.

Researchers reviewed 38 studies that involved a total of 2.7 million women from five countries and found that those who regularly took non-steroidal anti-inflammatory drugs (NSAIDs) had a lower incidence of breast cancer.

Past research has indicated there may be a link between the anti-inflammatory drugs and a reduced risk of breast cancer, but some of the results were inconsistent. The new study, being published in the Journal of the National Cancer Institute, is the largest review ever conducted of these studies and provides strong evidence of a relationship between the drugs, whose generic names are acetylsalicylic acid and ibuprofen, and a reduced breast-cancer risk.

“It is encouraging and we should definitely look into this further,” said Mahyar Etminan, one of the study’s authors and a scientist at the Centre for Clinical Epidemiology and Evaluation at Vancouver Coastal Health. The study was a joint effort by VCH, the University of British Columbia and the Universidade de Santiago de Compostela, in Spain.

NSAIDs are typically used to treat pain, fever, arthritis and other problems related to inflammation.

Dr. Etminan said the research is still too preliminary for physicians to start prescribing the drugs to women to ward off the disease. Prolonged use of these medications can cause serious side effects such as gastrointestinal bleeding. But the findings could eventually lead to new prevention options, she said.

In the review, researchers found that women who took any kind of NSAIDs on a regular basis had a 12-per-cent relative reduction in the risk of developing breast cancer compared with those who didn’t take the drugs.

For women who took Aspirin, the reduction was slightly greater, at 13 per cent, while those who took Advil had a 21-per-cent reduction in their breast-cancer risk.

It’s unclear exactly how or why NSAIDs may reduce the overall risk of developing breast cancer, but some research has pointed to the possibility that they may block an enzyme, cyclooxygenase, which plays a role in the development of cancer.

But Dr. Etminan said the study is an important step toward understanding how inflammation is linked to an elevated risk of cancer, and whether the drugs can one day be used as a preventive therapy in combination with other treatments.

“If … this drug indeed does lower the risk of breast cancer, again, it could be used as an adjunct with hormone therapy. Or in conjunction with chemotherapy. It definitely would have its place as a preventive measure,” said Dr. Etminan, who is also a professor of medicine at the University of British Columbia.

More research must be conducted in order to determine whether it would be effective and feasible to prescribe NSAIDs to women on a regular basis in order to guard against breast cancer, she said.

Right now, researchers in Britain are involved in a large randomized trial that could provide more definitive answers to those questions and lead to new treatment developments, Dr. Etminan said.

“I think that the results of that study would shed light into whether we actually want to prescribe these drugs routinely to prevent [breast cancer],” she said.

Are you food-safety savvy?

The latest listeria outbreak has made the issue of food safety impossible to ignore. There’s no question that food-borne illness has been a growing concern over the past 10 years, with reports of contaminated spinach, tomatoes, apple juice, berries, beans sprouts and, most recently, deli meats.

While food processing has been blamed for many of these outbreaks, the fact remains that the majority of food-safety problems occur at home. It is estimated that Canada has as many as 13 million cases of food poisoning every year, most of which could be prevented by safer handling of food at home.

Despite repeated advice to wash hands thoroughly, check best-before dates, and cook meat to a safe temperature, research suggests that many of us are not putting these instructions into practice.

If you’re like me, you’re going to be spending time in the kitchen this weekend preparing a Thanksgiving meal - or at least eating one.

To help ensure your meal is as safe as possible, take a minute to brush up on your food-safety know-how. The following quiz will help you determine how savvy you are when it comes to food safety at home.

1. Microwaving destroys bacteria that cause illness - true or false?

Answer: False

Don’t assume that microwaving your food means you’ve killed harmful bacteria. Microwave cooking heats food from the outside in - not from the inside out - which can result in cold spots where bacteria can thrive.

Cut food into small pieces and arrange them uniformly to promote even heating. For foods that need longer cooking times, stir or rotate them at regular intervals.

2. Fresh produce must always be washed - true or false?

Answer: True

Fresh fruit and vegetables should never be consumed without being washed under clean, running water - even prebagged, prewashed produce. Potatoes, carrots, squash and melon should be scrubbed with a vegetable brush to prevent contamination during cutting.

Dry produce with a clean paper towel to further reduce the presence

of bacteria.

3. Refrigeration halts bacterial growth - true or false?

Answer: False

Refrigeration slows, but does not stop the growth of harmful bacteria. Unlike most microorganisms that cause food poisoning, listeria can multiply in the refrigerator. To discourage the growth of bacteria in food, make sure your fridge is set at

4 C (40 F) or colder and the freezer at -18 C (0 F). Refrigerate or freeze prepared food and leftovers within two hours.

4. It’s only the turkey, not the stuffing, that can make you sick - true or false?

Answer: False

Stuffing, when cooked inside a turkey, can become contaminated if not cooked to a safe temperature. The safest way to cook stuffing is separately, in its own dish or on the stovetop, to a minimum temperature of 74 C (165 F).

5. What temperature does your stuffed Thanksgiving turkey need to reach before it is safe to eat?

a) 63 C (145 F)

b) 71 C (160 F)

c) 80 C (175 F)

d) 82 C (180 F)

Answer: d) 82 C (180 F)

Use a digital meat thermometer and cook your turkey until the temperature at the thickest part of the breast or thigh is at least 82 C (180 F). To kill harmful bacteria, turkey should be roasted at or above 177 C (350 F). It is not recommended that poultry be partly cooked one day and finished the next.

6. Which food is not linked to listeria contamination?

a) Hot dogs and deli meats

b) Baked brie

c) Smoked fish

d) Refrigerated paté

Answer: b) Baked brie

Cold cuts, hot dogs, smoked seafood and soft cheeses made from unpasteurized milk (e.g. feta, camembert, brie, blue-veined

cheeses) may harbour listeria. Even undercooked turkey and other meat can be risky. Pasteurization and cooking to proper temperatures kill the bacteria.

High-risk individuals, such as pregnant women, the elderly and people with weakened immune systems, should avoid these foods.

7. What is the safest way to thaw your Thanksgiving turkey?

a) On the kitchen counter

b) In a sink full of cold water

c) In the microwave

d) In the fridge

Answer: d) In the fridge

The ideal way to defrost a turkey is on a tray on the bottom shelf of the fridge. Allow 5 hours per pound.

If you’re short on time, thaw in cold water but change the water every 30 to 60 minutes. Allow one hour per pound. Never defrost a turkey

at room temperature. Frozen, pre-stuffed turkeys do not require thawing.

8. Food poisoning can cause which of the following symptoms?

a) Constipation

b) Fever

c) Headache

d) All of the above

Answer: d) All of the above

Classic symptoms include stomach cramps, nausea, vomiting, diarrhea and fever. But other symptoms - which people often don’t associate with food poisoning - include headaches, constipation, breathing problems and blurry vision. Symptoms can appear within a few hours or several weeks after eating contaminated food. Many cases of food poisoning go unreported because symptoms are attributed to stress, stomach flu or overeating.

9. How long does it take for the number of bacteria to double in food at room temperature?

a) 1 day

b) 8 hours

c) 2 hours

d) 20 minutes

Answer: d) 20 minutes

Bacteria grow rapidly in the temperature range of 4 C to 60 C. Food should not be left in this danger zone for more than two hours. Refrigerate leftovers quickly in shallow containers, or lay food flat in resealable plastic bags to speed up cooling. Don’t overcrowd your fridge; cold air needs to circulate above and beneath food to keep it properly chilled.

10. How long can you safely refrigerate your Thanksgiving leftovers?

a) 2 weeks

b) 1 week

c) 3 days

d) 2 days

Answer: c) 3 days

To ensure safety and best quality, refrigerated leftovers should be consumed within two to three days or frozen for later use. Date leftovers to ensure they are not stored too long. In the freezer, cooked turkey can be frozen for up to three months; gravy for two to three months. Reheat leftover turkey to a temperature of at least 74 C (165 F) and gravy and soup to a rolling boil.

RATE YOUR FOOD-SAFETY KNOW-HOW

Add up the number of correct answers to determine your score.

8 to 10: Move to the head of the class.

5 to 7: You pass, but there’s room for improvement.

Less than 5: You flunk. Memorize the food-safety motto: Cook, separate, cook, chill.

For more food-safety tips, visit Canfightbac.org, the website of the Canadian Partnership for Consumer Food Safety Education.

Leslie Beck, a Toronto-based dietitian at the Medcan Clinic, is on CTV’s Canada AM every Wednesday. Her website is lesliebeck.com.

 

Exotic pets pose health risks

So your son is begging for a pet turtle. Before you cave in, consider the salmonella it packs along with it.

Reptiles, monkeys, rodents and other exotic pets are soaring in popularity, but shouldn’t be welcomed in homes with babies, toddlers or people with immune-system problems, according to a report published in the October issue of Pediatrics, the journal of the American Academy of Pediatrics.

“Most nontraditional pets pose a risk to the health of young children, and their acquisition and ownership should be discouraged in households with young children,” wrote the authors, led by Larry Pickering of Emory University school of medicine in Atlanta.

The report listed a battery of nasty diseases linked to weird and wonderful pets. Most reptiles, for example, carry salmonella bacteria. Hedgehogs, whose popularity has exploded since they arrived on the pet scene about 15 years ago, can spread rabies and ringworm. Macaque monkey bites can give you hepatitis B.

Exotic-pet enthusiasts jumped on the defensive yesterday, saying their favourite species were being unfairly maligned.

“Kids get bitten by black Labs all the time,” said Steve Marks of Sciensational Sssnakes!!, an Orillia, Ont., company that provides hands-on educational programs about reptiles and amphibians for school groups.

“Go into a supermarket and touch an uncooked chicken,” said Dave Shelvey, owner of Westman Reptile Gardens in Brandon, Man. “You have way more chance of getting salmonella from a bird than you ever do from a reptile.”

Owning a hedgehog is like owning a dog, said Connie Crawford-Redman, a part-time breeder in Winnipeg. “If you’ve got kids, you have them wash their hands.”

But the report’s authors said parents need to be educated about the increased risks of exposure to nontraditional pets and animals in public settings, such as petting zoos, for infants and other children under 5 and for people with immune-system problems.

Potential problems range from allergies to the spread of infectious diseases, they said. For instance, a 2003 outbreak of monkey pox that affected about 20 people in the midwestern United States was traced to imported Gambian pouched rats.

And 6 per cent of all sporadic salmonella infections in the United States - about 74,000 cases annually - are the result of direct or indirect contact with reptiles or amphibians.

The number of exotic pets in the United States has soared by 75 per cent since 1992. In 2005 there were nearly 88,000 mammals, 1.3 million reptiles and 203 million fish imported illegally into the United States.

Canada has seen a similar boom in the past two decades, said Shelagh MacDonald, program director with the Canadian Federation of Humane Societies.

While pediatricians know about pet-related hazards, only 5 per cent said they regularly educate parents and children about such dangers, an attitude that should change, the authors said.

That’s one reason Scott Weese - an associate professor in the Department of Pathobiology at the University of Guelph and expert in zoonotic diseases - launched his blog, wormsandgermsblog.com.

“I get calls from doctors and veterinarians all the time. There was obviously a need for some of this information,” said Dr. Weese, who posts information about pet-related diseases, how much risk they pose, and strategies for minimizing that risk.

Simple and effective strategies include frequent hand washing and avoiding direct contact with certain animals or their living quarters, Dr. Weese said.

With files from Reuters

Study warns of the darker side of tanning

The tanning bed industry is failing to warn consumers about the potential health risks of artificial tanning and doesn’t seem to prevent young teens from using them, despite warnings from Health Canada, according to a study released today by the Canadian Cancer Society.

The Ontario branch of the society is calling for a ban on people under 18 using tanning beds in the province and for restrictions on the marketing and advertising of tanning salons.

"The results of our study were very disturbing," said Rowena Pinto, senior director of public affairs at the society’s Ontario branch, which commissioned the study. "Some type of legislation and enforcement is required."

The findings also indicate the need for stronger government regulation to protect people from possible overexposure to harmful ultraviolet rays that could increase their risk of developing skin cancer, she said.

Plastics ingredient linked to smaller penises

Exposure of expectant mothers to phthalates, a common ingredient in many plastics, has been linked to smaller penis size and incomplete descent of testicles in their baby boys, according to a new research paper that found the chemical also appears to make the overall genital tracts of boys slightly more feminine.

The findings are sure to add more controversy to phthalates, a chemical that is added to polyvinyl chloride plastic to make it less brittle, and to many types of personal care products including fragrances, hair sprays and nail polish.

The research was conducted on children from three different areas of the United States, and found a strong statistical correlation between expectant mothers who had above-average levels of the chemical in their urine while pregnant and the feminizing effect on their sons.

Phthalates are “probably reproductive toxins and should be eliminated from products gradually because we don’t need them,” said Shanna Swan, director of the Center for Reproductive Epidemiology at the University of Rochester’s school of medicine, who led the team of scientists who examined the boys.

The paper is published in the current issue of the journal Environmental Research.

The Virginia-based American Chemistry Council, which represents the makers of the chemical (Exxon Mobil, BASF, Ferro Corp., and Eastman Chemical), issued a statement saying it “cautioned against over-interpreting any individual study.”

Scientists have been investigating the possible effects on boys of phthalates because rodent studies have shown the chemical has the peculiar ability to shorten the space between the anus and the genitalia in male mice exposed during fetal development. This space, known as anogenital distance or AGD, is normally about twice as long in young male mice than in females. For mice, AGD is considered a measure of masculinity and a way to determine the sex of the pups. Scientists are so confident of the effect that they’ve given the impact of the chemical on male rodents a name - phthalate syndrome.

Surveys of children have also found that there is a marked sexual difference for this trait in humans, too, with the length in boys about 50 per cent more than in girls.

Dr. Swan’s research, conducted on 106 boys from Los Angeles, Columbus, Missouri and Minnesota, is among the first to raise the possibility that phthalate syndrome may also be at work in humans, because it found pregnant women with the highest amount of phthalates were markedly more likely to give birth to boys who had shorter anogenital distances.

When the boys were compared, none of the 29 with a shorter AGD were born to women who had low amounts of phthalates, while among the boys with a long space, only one was born to a mother with a high amount of the chemical.

The difference in the genital distance between the high-exposure and low-exposure boys was slight - around 3 to 4 per cent.

The paper also showed that incomplete descent of the testicles was “significantly” associated with mothers having more of the type of phthalate used in polyvinyl chloride plastic.

This phthalate, known as DEHP, has been listed as a toxic substance in Canada, and Health Canada has proposed but not implemented a prohibition limiting the chemical to no more than 0.1 per cent of the weight of toys used by young children.

Phthalates may have adverse effects because they are able to reduce testosterone synthesis by interfering with an enzyme needed to produce the male hormone. This raises worries that they may alter any process dependent on the hormone that choreographs male development. Phthalates can easily leach out of products, enabling humans to absorb them through diet, skin and inhalation.

Dr. Swan cautioned that the research was conducted on a relatively small number of boys, and the findings need to be independently verified by other investigators. It also isn’t known what effect, if any, the chemical might have on the fertility of the boys, later in life, because the group would need to be followed into adulthood.

Nonetheless, Dr. Swan said she believes labelling laws need to be strengthened to allow consumers to choose whether to buy products or packaging that contain phthalates.

Cosmetics often contain phthalates, but the chemical isn’t specifically mentioned because it is included in other listed items, such as fragrances.

Dr. Swan says she tries to buy phthalate-free cosmetics and doesn’t store or microwave food in plastic containers, among other steps, to minimize her own exposure.

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