Animal health officials investigating a bird flu outbreak in southwest Indiana have ordered 156,000 chickens at one of 10 affected commercial poultry farms to be euthanized, raising the total number of birds to be killed above 400,000.
Scientists are developing a vaccine that has already tested 100 percent effective in protecting chickens from bird flu but is yet to be tested on other birds including turkeys, US Agriculture Secretary Tom Vilsack said.
Visiting US Agriculture
Secretary Tom Vilsack said on Thursday that Washington will prepare
to send officials to Japan as part of efforts to ease Tokyo`s
restrictions on US beef imports because of mad cow disease