New bird flu dangers: strain H7N2 virus can replicate respiratory tract
ATLANTA, May 28 (UPI) — A study led by U.S. researchers suggests H5N1 is not the only strain of bird flu that could cause a pandemic. Terrence Tumpey of the U.S. Centers for Disease Control and…
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New bird flu dangers: strain H7N2 virus can replicate respiratory tract

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