Assertion: flu vaccine | /r/HasProperty | matched
Facets:
value: to circulating flu viruses
type: OTHER
value: well
type: DEGREE
value: especially
type: MANNER
Source sentences:
text: During years when the flu vaccine is not well matched to circulating influenza viruses, it is possible that little or no benefit from flu vaccination may be observed.
text: While determining how well a flu vaccine works is challenging, in general, recent studies have supported the conclusion that flu vaccination benefits public health, especially when the flu vaccine is well matched to circulating flu viruses.