Table 1.

Bacteria that can cause upper respiratory tract infections9

Organism	Disease
Mycoplasma pneumoniae *	Laryngotracheobronchitis (croup)
Haemophillus influenzae type b	Epiglottitis
Streptococcus pneumoniae
Staphylococcus aureus **
Streptococcus pyogenes	Pharyngitis/tonsilitis
Group C and G beta‐hemolytic streptococci
Arcanobacterium (Corynebacterium) haemolyticum
Neisseria gonorrhoeae	Pharyngitis
Corynebacterium ulcerans
Yersinia enterocolitica
M. pneumoniae	Pneumonia/bronchitis/pharyngitis
Fusobacterium necrophorum	Peritonsillar abscesses
S. pyogenes
S. aureus

^* in few cases

^** occasionally