title: Rhinovirus transmission: one if by air, two if by hand.
mesh_terms: D003139:Common Cold / Q000635:transmission*; D006801:Humans; D009296:Nasal Cavity / Q000382:microbiology; D009297:Nasal Mucosa / Q000378:metabolism; D012229:Rhinovirus / Q000302:isolation & purification*; D012463:Saliva / Q000382:microbiology