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Category: Infectious Disease

Since our last interview with Dr. Ben Goldacre in March of this year, he has written many a tale about the ongoing misrepresentations of science through agencies that wish to sell you a product or provide information through media sources.

Given that many applications of common alternative medical treatments are harmless in nature, there are times when the modes of thinking and claims made by the purveyors of these “health products” cause misery and death.

Such is the case of vitamin-pill entrepreneur Matthias Rath who sued Dr. Goldacre, and the Guardian, for libel. Rath lost his case after a long and expensive court battle but the harm that befell the people of South Africa when his products were touted as a treatment for AIDS and supported by the South African Government was severe.

Dr. Goldacre now has published the chapter of his book Bad Science entitled The Doctor will Sue You Now now that he has won the court case. It is a sad illustration and a very serious story about the dangers of pseudoscience.

As Dr. Goldacre states,

Matthias Rath takes us rudely outside the contained, almost academic distance of this book. For the most part we’ve been interested in the intellectual and cultural consequences of bad science, the made-up facts in national newspapers, dubious academic practices in universities, some foolish pill-peddling, and so on. But what happens if we take these sleights of hand, these pill-marketing techniques, and transplant them out of our decadent Western context into a situation where things really matter?

Afternoon Edition – H1N1 Special
Rob Snow and Dr Barry Dworkin host a four hour special on H1N1 answering your questions about the virus and the vaccine to protect against it.

References:

Public Health Agency of Canada – National Advisory Committee On Immunization: Influenza Vaccine
Thimerosal in Vaccines
Thimerosal and Vaccine Safety
Squalene information from FDA site
Information on opposing voices and the methodology employed
An Epidemic of fear
The Cochrane Influenza Resources
Cochrane review of vaccines and autism claim

As the focus of attention turns to the H1N1 outbreak that is now occurring across the country, the public faces an array of information sources that will influence their opinion about vaccination. There have been many claims and critiques about the H1N1 vaccine and it has become a springboard to envelop other vaccines and vaccination [...]

With the H1N1 flu season upon us, the need to provide credible evidenced-based information to the public is an essential in order to answer questions and concerns. Dr. Isra Levy, the City of Ottawa’s Chief Medical Offer of Health and Dr. Nadine Sicard, Associate Medical Offer of Health and member of the National Advisory Committee [...]

Original broadcast date: July 19, 2009 A recent report in the Canadian Medical Association Journal notes that Lyme disease is being found in regions that were once free from the ticks that spread the disease. They are urging the public and health professionals to be more vigilant and learn to recognize some of the signs [...]

Original broadcast date: June 14, 2009 Pathogenic or disease-causing bacteria want to survive. To that end, they have complex mechanisms that will allow them, over time, to adapt and resist antibiotic treatments. The pace of new antibiotics being introduced into the market is slowing and other approaches are needed to help fighting difficult to treat [...]

Original broadcast date: May 18, 2009 Of great concern to many travelers is the prevention of infectious diseases such as typhoid, hepatitis A and B, malaria, and enterotoxigenic E. coli among others. Another common form of traveler’s diarrhea caused by the bacteria campylobacter jejuni is becoming resistant to antibiotic therapy. A research group from the [...]

Original broadcast date: April 26, 2009 Several shows back on Sunday House Call we talked about biofilms with Darla Geores, Research engineer with the Center for Biofilm Engineering and Assistant Research Professor, Chemical & Biological Engineering at Montana State University, who is conducting research sponsored by the EPA to develop a protocol to assess the [...]

Original broadcast date: March 8, 2009 How do you know that the disinfectant that claims to kill over 99 per cent of bacteria actually does just that? What are the mechanisms of action that result in this effect? Today, we are going to learn about biofilms, what they are, what they do, how we are [...]

Original broadcast date: January 25, 2009 So you are set to travel south for a winter escape vacation. Since many also book these vacations on a last minute basis, they tend to forget that there are some health issues that need to be considered. One such issue is malaria. Dr. Jay Keystone, MD, MSc (CTM),. [...]

Amongst the myriad of childhood vaccine success stories, the introduction of Prevnar 6 years ago to guard against infections stemming from the bacterium streptococcal pneumonia, has protected countless children from bacterial meningitis, pneumonia, and middle ear infections; this form of pneumococcal disease is the number one vaccine-preventable cause of death in children younger than five [...]

Although the Human Papilloma Virus or HPV vaccine is recommended for girls and women to prevent and reduce the risk of genital warts and cervical cancer, it is unknown how well it works on the other half of the population, that is boys and men. Data, presented at the European Research Organization on Genital Infection [...]

Reports of C. difficile and other infection outbreaks in Ontario hospitals recently prompted the provincial government to make a formal commitment to patient safety, introducing mandatory public reporting of hospital infection rates and examining patient safety measures currently in place. So what is actually happening in Ontario hospitals?  CIHI’s latest report, Patient Safety in Ontario [...]

In light of recent reports of E. coli contamination in a Northern Ontario restaurant and now in Southern Ontario communities, the news of the full licensing approval from the Canadian Food Inspection Agency (CFIA) of the world’s first vaccine designed to reduce the shedding by cattle of Escherichia coli (E. coli) O157:H7 is a welcome [...]

One of the problems for physicians and patients alike is trying to determine whether a viral respiratory infection is due to a cold virus of the flu among others. This has specific therapeutic and public health implications that would allow accurate advice and prevention measures on a more immediate basis. Dr. James Mahony, Director of [...]

Although the media have not paid much attention to avian flu recently, research into an H5N1 avian flu vaccine continues. Results of a phase I and phase II trial on a new human vaccine against H5N1 bird flu virus made from cell culture instead of embryonated eggs show that it is safe and effective against [...]

Should adults receive a prescription for an antibiotic if they have an acute sinus infection that has persisted for seven to 10 days? What are the outcomes of antibiotic use in adults? An analysis of this issue was published in the March 15, 2008 issue of The Lancet. Dr. James Young, PhD, Basel Institute for [...]

Chronic hepatitis B affects an estimated 230,000-290,000 people in Canada. Though there is a range of new effective antiretroviral treatments that can help reduce disease complications, the estimated 80,000 – 100,000 chronic hepatitis B patients in Ontario have only limited options paid for by the Ontario Drug Benefit Program. Last week the British Columbia government [...]

Original broadcast date: February 10, 2008 When it comes to Canadians’ knowledge about malaria and the transmission of the disease, there are some areas that need attention according to a Leger Marketing Survey conducted between November 6, 2007 and November 11, 2007 Dr. Jay Keystone, M.D., M.Sc. (CTM), FRCPC Director of Medisys Travel Health Clinic [...]

Original broadcast date: January 13, 2008 There were reports in November 2007 about an antibiotic-resistant strain of streptococcal pneumonia that caused a small number of childhood ear infections in Massachusetts and New York State. One case was reported at SickKids in Toronto wherein it progressed to meningitis. The strain 19A was treated with an antibiotic [...]

Many of us have had the unpleasant experience of developing a skin abscess. The approach to treating this infection is variable and can include the use of antibiotics. It would seem to make sense because abscesses are usually caused by bacteria. In a study published in the April 2007 edition of the Annals of Emergency [...]

How many people remember seeing a child with polio? The success of vaccination programs has created a situation that elegantly illustrates how we think about risk and danger. Because most people have no experience with the disease, many do not perceive it to be a danger anymore. However other areas of the world unfortunately do [...]

When travelling this summer, what travel precautions should Canadians take? What is TBE and should Canadians travelling to Eastern Europe and parts of Asia be vaccinated against it? Dr. Jay Keystone, Professor in the Department of Medicine, and Director, International Health Programs, at the University of Toronto. He is also a staff physician at the [...]

HIV infection rates are a major public health problem especially in Africa. Treatment with retroviral medications is expensive and not available in many regions of the continent. Prevention is of great importance if the spread is to be curtailed. According to final data from two National Institute of Health-funded studies conducted in Uganda and Kenya [...]

Depression will affect up to 25 per cent of Canadians during there lifetimes. There are different hypotheses that try to explain why depression rate seems to be increasing from sociological factors to improved detection and diagnoses and one’s environment. When we talk about the person’s environment, we tend to think of life stresses, traumatic life [...]

The National Advisory Committee on Immunization (NACI) recommended this week that all Canadian girls and women aged 9 to 26 should be routinely vaccinated to protect them against the Human Papillomavirus (HPV), the primary cause of cervical cancer. The vaccine is only the second anti-cancer vaccine developed, the other being the Hepatitis B vaccine. What [...]

There is no evidence antibiotics help the vast majority of patients with acute bronchitis, and doctors should stop routinely prescribing them. Acute bronchitis, an inflammation of the main airways to the lungs marked by an irritating cough, is one of the most common conditions treated by primary-care doctors, occurring in about 5 percent of adults [...]

The news hasn’t been good recently for people planning a cruise ship vacation. Although the majority of travelers experience a trip that is relatively problem-free, we do come across reports of Norovirus outbreaks on some cruise ships. Recently the world’s largest cruise ship was held in port for intensive cleaning after a second outbreak of [...]

What makes a particular strain of the flu more aggressive than others? Is there a disease model that can explain why the severity of flu seasons can vary? A study published in October 2006 in the online journal Biology Direct, researchers suggest that one possible avenue to explain these variations is an ongoing competition between [...]

A majority of Canadian boomers are expecting to travel in the coming years, and they are not traveling to just spend time on the beach. Choosing more exotic locales and travel experiences means that more preparation is needed to prevent illnesses caused by tropical diseases. What are the diseases that are tracked and for which [...]

With the beginning of flu shot season there are questions being asked about the effectiveness of universal vaccination programs. Is there evidence to support the widespread use of the vaccine as part of public health policy? In the October 28, 2006 edition of the British Medical Journal, Dr. Tom Jefferson, co-ordinator of the Cochrane Vaccines [...]

It can be one of the more frustrating and distressing experiences for parents; their child screaming in the night because of a painful infected middle ear infection or otitis media. In the past, children would immediately be prescribed an antibiotic to destroy the bacteria contributing to their pain and inflammation. However, a new study, published [...]

Although largely the domain of hospital-based infections, two recent studies findings show that C. difficile bacteria is found in a variety of ground and processed meats bought from grocery stores in Canada and the United States. This unexpected discovery some experts say may be linked to recent changes in the pattern of the disease with [...]

What is one to make of the recent and troubling appearance of infectious and toxin producing bacteria in our North American food supply? It is an illustration how quickly food-borne illnesses can spread and the importance of food safety. How common and how easy is it to contaminate food on an industrial scale? Rob Mancini [...]

Many people use antibacterial soaps in their bathrooms and kitchens, they carry hand sanitizing gels and wipes when they’re away from home, and their grocery stores have even gotten into the act, offering wipes for the cart handles. There are concerns that the use of these products could lead to increased bacterial resistance and health [...]

Globally, the the AIDs epidemic is creating tremendous human suffering and for many, a death that could have been prevented or significantly delayed. Prevention programs in existence for a time have begun to show positive results in countries that are having difficulty controlling the spread of the disease. However as some of these programs become [...]