It has long been thought that there are linkages between certain viruses and the weather. The flu season is winter (in whichever hemisphere it happens to be winter in) for reasons having to do with the seasons. One early theory posited that the practices of East Asian farmers, as they tended their animals, caused waterfowl and swine and humans to share space closely enough that nasty new influenzas would emerge and spread around the world. Although that explanation for the annual seasonal flu has been dropped (if it ever really had wings… or hooves, or whatever) it is still possible that such a pattern could occur. One of the more likely places to look for this sort of thing is with bird flu, because there are large numbers of migratory birds that host the flu, and the interaction of wild and domestic birds is not an incredibly unlikely event.
Continue reading Outbreaks of H5N1 Bird Virus Infection in Wild Birds in time and space: Temperature matters (with cool video)