This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Microbiology
Super antigen is produced by which of the following- 
Select and explain. 
A. Streptococcus pyogenes, B. Clostridium perfringens, C. Vibrio cholerae, D. Staphylococcus epidermidis
A: Streptococcus pyogenes
Answer: A: Streptococcus pyogenes 
Explanation: Erythrogenic/Pyrogenic toxins are superantigens produced by Streptococcus pyogenes. They cause streptococcal toxic shock syndrome. Streptococcal toxic shock syndrome(STSS) is a rare, but serious bacterial infection. STSS can develop very quickly into low blood pressure, multiple organ failure, and even death. Examples of Bacterial super-antigens: Staphylococcal toxin Streptococcal toxin o Mycoplasma ahritidis mitogen 1 Yersinia enterocolitica Yersinia pseudotuberculosis Viral:EBV, CMV, Rabies nucleocapsid, HIV encoded nef (negative regulatory factor) Fungal superantigen: Malassezia furfur