[SEROLOGICAL STUDIES IN A HOME FOR SMALL  CHILDREN DURING AN EPIDEMIC OF INFLUENZA].
D002648:Child; D058872:Epidemics; D004813:Epidemiology; D006384:Hemagglutination; D006386:Hemagglutination Tests; D006801:Humans; D007223:Infant; D007251:Influenza, Human; D011044:Poland
EPIDEMIOLOGY; HEMAGGLUTINATION; INFANT; INFLUENZA; POLAND