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  • Content Type: Abstract

    So as to develop more effective countermeasures against influenza, timely and precise information about influenza activity at schools, kindergartens, and nursery schools may be helpful. At the Infectious Diseases Surveillance Center of the National… read more
    … activity at schools, kindergartens, and nursery schools may be helpful. At the Infectious Diseases Surveillance … activity at schools, kindergartens, and nursery schools may be helpful. At the Infectious Diseases Surveillance …