搜尋結果
USDA confirms cow-to-cow transmission a factor in bird flu spread
Reuters· 36 分鐘前The U.S. Department of Agriculture said this week that cow-to-cow transmission is a factor in ...
WHO says human cases of bird flu ‘an enormous concern’
South China Morning Post· 14 小時前Cows and goats joined the list last month – a surprising development for experts because they ...