title: A variant of parainfluenza type 2 virus.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D046508:Culture Techniques; D006168:Guinea Pigs; D000882:Haplorhini; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D006801:Humans; D009500:Neutralization Tests; D009976:Orthomyxoviridae Infections / Q000382:microbiology; D012141:Respiratory Tract Infections / Q000382:microbiology; D018108:Respirovirus / Q000145:classification* / Q000276:immunology / Q000302:isolation & purification; D013696:Temperature