Thứ Năm, 5 tháng 4, 2018

NPR News: A Novel Virus Killed 24,000 Piglets In China. Where Did It Come From?

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A Novel Virus Killed 24,000 Piglets In China. Where Did It Come From?
At first, tests were positive for porcine epidemic diarrhea virus. Then something strange happened. The pigs stopped testing positive for that virus — but kept getting sick.

Đọc thêm tại NPR
at April 5, 2018 at 12:54AM
Health & Science
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