Nasal mucus and influenza viruses.  I.  The haemagglutinin inhibitor in nasal secretions.
D006388:Hemagglutinins; D006801:Humans; D007251:Influenza, Human / Q000175:diagnosis*; D009093:Mucus; D009296:Nasal Cavity; D009975:Orthomyxoviridae; D010256:Paranasal Sinuses
D006388:Hemagglutinins
INFLUENZA VIRUS; INFLUENZA/diagnosis; NASAL CAVITY