Illustration: Drawing with word(s)/letter(s)/number(s) in Block form Attorney: Roger H. Bora Thompson Hine LLP 10050 Innovation Drive Suite 400, Miamisburg, OH 45342 Employee: Timothy J Finnegan
Tonsillitis is most often caused by common viruses, but bacterial infections can also be the cause.The most common bacterium causing tonsillitis is Streptococcus pyogenes (group A streptococcus), the bacterium that causes strep throat. Other strains of strep and other bacteria also may cause tonsillitis.onsillitis is most often caused by common viruses, but bacterial infections can also be the cause.
A person with tonsillitis caused by strep bacteria is contagious early on and, without treatment, can remain so for up to 2 weeks. Antibiotics shorten the contagious period, and an infected person is no longer contagious about 24 to 48 hours after beginning antibiotic therapy.acteria can also cause tonsillitis. The most common bacterial cause of tonsillitis is group A beta-hemolytic streptococcus (GABHS), which also causes strep throat. Tonsillitis can also be caused by fungi or parasites.