Has never been : Avian influenza has yet to make the leap into large numbers of humans and so far the majority of cases have been in farmers, bird handlers or others who have contact with birds.
Answered 9/28/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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