Related terms:
flu
cdc
pigs
cough
masks
tamiflu
virus
strain
vaccine
pandemic
swine flu
viruses
outbreak
illness
influenza
flu viruses
seasonal flu
pandemic flu
flu pandemic
infected
circulating
world health
confirmed cases
swine influenza
symptoms
surveillance
swine flu outbreak
influenza a virus subtype
centers for disease control
disease control and prevention
Wikipedia sources:
2009 flu pandemic
Pandemic H1N1/09 virus
2009 flu pandemic in the United States
2009 flu pandemic in the United Kingdom
Context for words:
new
strain
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