The USDA is making good on a vow it made in July to have an avian flu vaccine in place by this fall. On Aug. 18, the agency put out a notice saying it would accept bids from animal health companies interested in developing a vaccine against H5N2, the deadly virus that led to the demise of 48 million chickens and turkeys earlier this year. Although the virus has waned in the warm weather, the agency wants to have a stockpile of vaccines on hand in case it returns, an official told the Associated Press. The agency is interested in hearing from companies that have the capacity to produce and store between 100 million and 500 million doses of the vaccine. Article