The flu that affects children the most helps increase cases amid fears in hospitals
Barr said there were two major strains of influenza A: H3N2, which accounted for about 75 percent of cases tested in his lab, and H1N1 (a descendant of swine flu), which accounted for 25 percent of cases. Barr said the H3N2 strain affected all groups, but older people were more likely to be hospitalized. He …
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