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HMB202H1F 2010-11 Lab 1

HMB202H1F 2010-11 Lab 1 - HMB202 LAB NEWS BULLETIN No...

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Unformatted text preview: HMB202 LAB NEWS BULLETIN No. 1 September 20, 2010 "Flu to hit here in November but it won't be anything like last year's season The good news is that a repeat of the 2009 H1N1 flu pandemic isn't expected this fall; the bad news is that the "usual flu season" will begin in November and last until April. When the flu season will peak can never be predicted, said Dr. Reka Gustafson, who specializes in communicable diseases for the Vancouver Coastal Health Authority. She said that last year, "the population wasn't immunized for the new strain [of influenza] and the outbreaks were more explosive and the peak was sharper," adding that after the second wave struck in October, it declined substantially. But long lineups for flu shots, which were doled out last year on a priority basis, won't be seen this year as health authorities gear up to provide the shot starting in midOctober at public health offices and community centres. People can also request a flu shot from their doctors. This year's shots will be for Influenza A California, Influenza A Perth and B strain Brisbane the virus is always named after the place it was first identified. Gustafson said anyone at high risk of complications if they get the flu is urged to get a shot. They include anyone over the age of 65, those with chronic illnesses, those particularly at risk for respiratory and cardiac problems, pregnant women and children under two."1 "H1N1 death toll similar to regular flu: study The new estimates place the H1N1 epidemic "within the lowest category of severity considered in pandemic planning," the team reports in a study released Monday by the journal PLoS Medicine. "I've been involved with trying to gauge the severity of this pandemic since it began in late April, and all of us have been frustrated by the fact that the uncertainty was really great, and that a lot of decisions had to be made before anyone could really say what it was," says Marc Lipsitch, professor of epidemiology at the Harvard School of Public Health and the study's senior author."2 1. http://www.canada.com/vancouversun/news/westcoastnews/story.html?id=3d619878655b4ab1 aeb7508e302cbec3&k=75370 2. http://www.vancouversun.com/health/H1N1+death+toll+similar+regular+Study/2313554/story.html HMB202H1F 201011 Page 1 of 2 Before coming to the lab, please view the 10 minute video on disease transmission here: http://teachinglabs.med.utoronto.ca/videos/hmb/flu.mpg This laboratory exercise involves a simulation of disease transmission. One student in the lab has been unwittingly infected with an unknown contagious pathogen not unlike the infected food handler described in the HMB202 Bulletin No. 1 on the previous page. The infected individual will proceed to spread the disease via human contact through the common behavior of hand shaking causing an outbreak of this unknown communicable disease! You will gather data on the pattern of transmission and try to determine the likely source of the infection. You will then discuss in lab a number of questions given below. Note: The "infected" student will have a talcum powder contaminated with GLOGERM POWDER. GloGerm is NOT a real bacterium or virus and is not harmful! The purpose of using this fluorescent powder is to "see" the transmission of pathogens leading to an outbreak of infectious disease. You can easily see if you have been "infected" by viewing your hand under ultraviolet light. Collect your materials for the exercise: 1. One plate of talcum powder per student. Procedure: 1. Pick up dish with powder in your left hand and dump into your right hand. Work powder around in the palm of your right hand without using your left hand. Dump extra powder back into dish. 2. The instructor will now direct handshake rotations. Using the right hand only go through the entire rotation of handshakes making sure that your hand really contacts the other person's hand. At each rotation, be sure to record the name of the person you just shook hands with. You will need this information to solve for the person who started the epidemic and the pattern of transmission. Handshake Records: #1 ________________________________ #2 ________________________________ #3 ________________________________ 3. Once you have completed all handshakes, do not touch anything or anyone else. Wait for the instructor to view everybody's hands under the ultraviolet light to determine who is infected. 4. As a tutorial group, record the number of people identified as infected and their names. Solve for the person who started the epidemic and the transmission pattern for the epidemic. 5. Your TA will give you the inclass assignment to complete and hand in at the end of this lab. HMB202H1F 201011 Page 2 of 2 ...
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