Prevention of acute respiratory diseases with particular reference to influenza.
D000208:Acute Disease; D035843:Biomedical Research; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control*; D012120:Respiration Disorders; D012137:Respiratory System; D012140:Respiratory Tract Diseases
INFLUENZA/prevention and control; RESPIRATORY TRACT/diseases