WASHINGTON — Sequences of H5N1 virus from live bird markets in China matched sequences from patients who had recently visited the live bird markets, according to a paper in the December 2011 Journal of Virology from the American Socieity for Microbiology.
Live poultry markets have long been suspected of providing the reservoir of H5N1 responsible for human cases, but this is the first molecular evidence linking H5N1 in humans to these markets, the authors say.
"We collected 69 environmental samples — basically swabs from ditches, cages, floors, water and so on — from the live bird markets, which six individual patients visited before. . .