Which of the following is NOT listed as an infection caused by Group A Streptococcus?

• A. Strep throat
• B. Scarlet fever
• C. Acute glomerulonephritis
• D. Tuberculosis

Answer: (D)

Understanding which illnesses are linked to Group A Streptococcus helps you identify the one that doesn’t belong. Group A Streptococcus, Streptococcus pyogenes, is a beta-hemolytic, gram-positive coccus that commonly causes strep throat (pharyngitis) and scarlet fever, the latter due to pyrogenic exotoxins producing the characteristic rash. It can also be associated with post‑infection complications like acute glomerulonephritis after a GAS infection. Tuberculosis, however, is caused by Mycobacterium tuberculosis and is not a GAS infection; it presents with a different pathogen, transmission, and disease pattern. So the option corresponding to tuberculosis is the one that is not a Group A Streptococcus infection.