Causative agent of sore throat is: September 2005
Ans. B: Streptococcus pyogenes The primary site of invasion of human body by streptococcus pyogenes is the throat. Primary bacterial pathogens that account for approximately 30% of cases of pharyngitis include Streptococcus pyogenes /Group A Beta Hemolytic Streptococci (common), group C streptococci (uncommon), group G streptococci (uncommon), Neisseria gonorrhoeae (uncommon), Corynebacterium diphtheriae (rare), and Corynebacterium hemolyticum (extremely rare). Viruses are isolated in approximately 40% of cases and include rhinovirus, adenovirus, parainfluenza virus, coxsackievirus, coronavirus, echovirus, herpes simplex virus, Epstein-Barr virus (mononucleosis), and cytomegalovirus. Other probable copathogens for pharyngitis in children include Staphylococcus aureus, Haemophilus influenzae, Branhamella catarrhalis, Bacteroides fragilis, Bacteroides oralis, Bacteroides melaninogenicus, Fusobacterium species, and Peptostreptococcus species.
Staphylococcus aureus
Streptococcus pyogenes
H. Influenzae
Corynebacterium diphtheriae