Commensal bacteria of the human respiratory tract.
D002353:Carrier State; D006801:Humans; D009343:Neisseria / Q000302:isolation & purification*; D012137:Respiratory System / Q000382:microbiology*; D013210:Staphylococcus / Q000302:isolation & purification*; D013291:Streptococcus / Q000302:isolation & purification*