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.
Most cases of acute pharyngitis and acute tonsillitis are due to the following infections. 1  Bacteria cause 15-30 percent of pharyngotonsillitis cases. 2  The herpes simplex virus. 3  Streptococcus pyogenes (GABHS). 4  Epstein-Barr virus (EBV) â glandular fever. 5  Cytomegalovirus (CMV).6  Adenovirus.7  Measles virus cause. Tonsillitis caused by bacteria (streptococcus species) Streptococcus species typically occurs in children aged 5 to 15 years, while viral tonsillitis is more common in younger children. 2  A peritonsillar abscess is usually found in young adults but can occur occasionally in children.