Para-influenza 2 (CA) virus: etiologic association with croup.
D002648:Child; D003440:Croup; D006801:Humans; D007223:Infant; D007251:Influenza, Human; D007827:Laryngitis / Q000821:virology*; D014777:Virus Diseases
LARYNGITIS/virology; VIRUS DISEASES/in infancy and childhood