causes of viral pharyngitis
Less commonly, pharyngitis is caused by a bacterial infection. Bacterial infections do require antibiotics. The most common bacterial infection of the throat is strep throat, which is caused by streptococcus A. Rare causes of bacterial pharyngitis include gonorrhea, chlamydia, and corynebacterium.he most common bacterial infection of the throat is strep throat, which is caused by streptococcus A. Rare causes of bacterial pharyngitis include gonorrhea, chlamydia, and corynebacterium.