Published in TB and Outbreaks Week, August 21st, 2001
The virus which causes flu is highly contagious. One study of the most recent available evidence concluded that on average, one in 10 adults and one in three children contract influenza every year. While most healthy people fully recover from the illness, hospitalizations and deaths among the elderly and chronically ill are of great concern.
Outbreaks of flu also have a serious economic impact wherever they occur, leading to severe pressure on public health systems, as well as extended absences from work and...
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