Microbial Etiology of Acute Pharyngitis - IDSA

Bacterial

 • Group A streptococcus - Pharyngotonsillitis, scarlet fever

 • Group C and group G streptococcus - Pharyngotonsillitis

 • Arcanobacterium haemolyticum - Scarlatiniform rash, pharyngitis

 • Neisseria gonorrhoeae - Tonsillopharyngitis

 • Corynebacterium diphtheriae - Diphtheria

 • Mixed anaerobes - Vincent’s angina

 • Fusobacterium necrophorum - Lemierre’s syndrome, peritonsillar abscess

 • Francisella tularensis - Tularemia (oropharyngeal)

 • Yersinia pestis - Plague

 • Yersinia enterocolitica - Enterocolitis, pharyngitis

Viral

 • Adenovirus - Pharyngoconjunctival fever

 • Herpes simplex virus 1 and 2 - Gingivostomatitis

 • Coxsackievirus - Herpangina

 • Rhinovirus - Common cold

 • Coronavirus - Common cold

 • Influenza A and B - Influenza

 • Parainfluenza - Cold, croup

 • EBV - Infectious mononucleosis

 • Cytomegalovirus - CMV mononucleosis

 • HIV - Primary acute HIV Infection

Mycoplasma

 • Mycoplasma pneumoniae - Pneumonitis, bronchitis

Chlamydia

 • Chlamydophila pneumoniae - Bronchitis, pneumonia

 • Chlamydophila psittaci - Psittacosis



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