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日期:2019-02-28 01:19:05 作者:单戛 阅读:

Mad cow mystery A seventh cow has died from BSE in Canada, but unlike the others, this one caught the prion disease after 1997 when the Canadian government banned animal-based feed. Canadian food inspection officials are checking how the cow from Alberta, diagnosed on 10 July, became infected. Bird flu drill Bird flu will break out in Singapore this weekend, but only as a trial run in how to deal with a real outbreak of H5N1. Around 500 “infected” volunteers and 1000 health workers will simulate outbreaks at Changi Airport, a border crossing to Malaysia and several hospitals,