MYXOVIRUSES: PARAINFLUENZA.
D002648:Child; D003168:Complement Fixation Tests; D004813:Epidemiology; D006801:Humans; D007223:Infant; D009500:Neutralization Tests; D009975:Orthomyxoviridae; D009976:Orthomyxoviridae Infections; D018184:Paramyxoviridae Infections; D012141:Respiratory Tract Infections; D046509:Tissue Culture Techniques; D014776:Virus Cultivation
CHILD; COMPLEMENT FIXATION TESTS; EPIDEMIOLOGY; INFANT; MYXOVIRUS INFECTIONS; NEUTRALIZATION TESTS; PARA-INFLUENZA VIRUSES; RESPIRATORY TRACT INFECTIONS; TISSUE CULTURE; VIRUS CULTIVATION