Related terms:
ha
bird flu
strain
human flu
poultry
avian flu
subtypes
pandemic
viruses
endemic
swine flu
flu viruses
sialic acid
spanish flu
influenza
hong kong flu
reassortment
hemagglutinin
pandemic threat
fully recovered
neuraminidase
influenzavirus
human influenza
avian influenza
influenza a virus
influenza vaccine
influenza viruses
currently circulating
currently endemic in both human
Wikipedia sources:
Human flu
Influenza A virus
Influenza pandemic
Context for words:
both
human
and
pig
populations
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