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Archive for the ‘Animal reservoir’ Category

In tonight’s live meeting your ever-fearless TA Brettania gave quite an interesting synopsis of Cryptococcus gattii, a fungal pathogen that is currently emerging in the Northwest US (and across the border in Canada).  If you missed it, I encourage you to look at in in the LiveMeeting archives on Blackboard. Participating students were interested in the large number of animals, particularly marine animals, that have been found to be infected with C. gattii. As strange as it sounds, that a whale or a dolphin could be carrying the same infection as a human, in the larger ecosystem it’s really not so unusual.

Take influenza – you know, too well, by now that influenza viruses also infect birds (ducks, geese, poultry) and swine. Did you know they also infect dogs, cats, horses, ferrets, stone martens and marine mammals (seals and whales)? It’s a huge ecosystem for a microscopic virus – as you may guess, influenza is going to be with us for a long time. Now that we are in Module 3 of the course you are (or will be) familiar with characteristics make pathogens difficult to eliminate or eradicate. Epidemiology, especially infectious disease epidemiology, has never been a field that could stand on it’s own – you can interweave a number of diverse fields of interest and find something interesting to talk about.

Speaking of interesting to talk about – has anyone read this book Inside the Outbreak? “Mark Pendergrast chronicles the exploits of the doctors, nurses, statisticians, and sociologists of the Centers for Disease Control’s Epidemic Intelligence Service, who jet around investigating the causes and remedies of disease outbreaks from Alabama to Zaire…” (publisher’s weekly). I’d be interested to know what you think. (Much of the text is available to read “looking inside” the book at Amazon, link from the picture).

dogs, horses, seals, whales

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Ebola!

May was an exciting month for Ebola fans. First, the National Institutes of Health (NIH) announced the unmitigated success of an Ebola vaccine in an animal model. Next steps for this project are trying to determine how to make the immune reaction one that responds to more strains of Ebola.

Then last week, a team of US and Canadian researchers announced a highly successful (again, in an animal model) treatment for Ebola. Read the Reuters article here or catch the NPR story here.

On an ancillary, but interesting note, to coincide with class content on transmission modalities, bush meat anyone? Here is an article about the purported risk of various exotic viruses that could be associated with the apparently thriving bush mean trade.  A few points about this article, other than the fact that it’s just interesting:

1) What a creative mode of transmission!

2) Now pause, for a moment, and think about epidemiologically “effective contacts”

3) What is the route of transmission of exotic viruses (hop over to this week’s disease of the week, hemorrhagic fevers, and peruse others), and finally

4) Does human consumption of bush-meat lead to human infection with “HIV-like” viruses, or other from primates (as listed in the noted article, monkey pox, the Ebola virus, yellow fever and tuberculosis).

Thoughts? Opinions? Take this week’s poll at the Question of the Week, and/or feel free to leave a comment here.

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In homage to Module 1 and brains that are very tired from thinking about R-zero and transmission dynamics, this week is a light-hearted post. Just for fun, click HERE to hear a rousing song about tularemia by Tristan Israel.  Enjoy!

Because my favorite diseases run toward the vector-borne, this week’s disease of the week is Chagas, which afflicts tropical and subtropical regions of the Americas.  What is your favorite disease? Hop on over to the question of the week to give your vote.

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