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Bird flu poses growing risk to people as pathogen spreads, scientists warn
More than 100 federal scientists who track bird flu, including vaccine and food safety experts, have been laid off. This ...
CBS News3 天
As bird flu hits cattle herds in U.S., scientists say these H5N1 factors worry them most
As the H5N1 bird flu virus mutates and rapidly spreads through ... Colorado vet Russo – and others – told 60 Minutes they feel stymied: the current distrust of science and vaccines is hurting ...