Advanced Dental Admission Test (ADAT) 2025 – The Complete All-in-One Study Guide for Exam Success!

Streptococcus pyogenes, also known as Group A Streptococcus, is a bacterium that is responsible for several human diseases, including impetigo, scarlet fever, and necrotizing fasciitis. Each of these conditions is directly associated with the pathogenic features of this bacterium.

Impetigo is a common and highly contagious skin infection primarily affecting children, characterized by red sores that can rupture, ooze, and then crust over. This infection is often caused by Streptococcus pyogenes or Staphylococcus aureus.

Scarlet fever is another illness caused by Streptococcus pyogenes, resulting from a toxin produced by the bacteria. It typically follows a strep throat infection and is characterized by a distinctive red rash, fever, and sore throat.

Necrotizing fasciitis, often referred to as flesh-eating disease, is a severe soft tissue infection that can be rapidly progressive and is associated with Streptococcus pyogenes. It results in extensive tissue destruction and is considered a medical emergency.

In contrast, tuberculosis is caused by Mycobacterium tuberculosis. It is a chronic infectious disease that primarily affects the lungs but can also affect other parts of the body. The causative agent is completely