Although previous studies have demonstrated what scientists call "herd immunity," none have been so incontrovertible, because they were done in less isolated places with more sources of flu passing through.
He notes that the ever-changing flu viruses in those animals are the source of new flu viruses in humans.
Potentially, we can no longer rely on waterfowl to be the only source of new flu variants, as bats have now been found to harbor influenza viruses whose internal genes share common ancestry with all known influenza A viruses.
Once it became apparent last week that the source of the flu was Mexico, why wasn't our immediate response to prevent passage into Mexico or out to the United States?
Live markets are also thought to be the source of recent avian flu outbreaks in New Jersey.
He plans to spend next week touring Thailand, Vietnam, Laos and Cambodia, the countries most likely to be the source of an avian flu outbreak, and talking with health ministers there about a coordinated surveillance of outbreaks.
There is indeed a swine factory, presumably with squealing pigs packed in tight quarters, near the suspected source of the recent swine flu outbreak.
The disease names that Miyagishima singled out for opprobrium include Middle East respiratory syndrome, which is currently causing an outbreak in South Korea, nowhere near the Middle East, and swine flu, the source of a 2009 pandemic that led the Egyptian government to order a comprehensive hog slaughter.
What has been your principal source of information on A(H1N1) flu? 1.
