Nose, nasopharynx & sinuses Nose, nasopharynx & sinuses
Staphylococcus epidermidis
Staph. aureus (especially in hospital staff)
streptococci (including S. pyogenes & S. pneumoniae)
Haemophilus sp.
Neisseria sp
Mouth & throat streptococci (mainly S. mitis & S. salivarius )
diphtheroids
anaerobes (e.g. Fusobacterium sp.)
Staph. epidermidis
spirochaetes