This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Streptococcus is called as flesh eating bacteria due to its? \nSelect and explain. \nA. Streptolysin A, B. Streptolysin 0, C. Pyrogenic exotoxin, D. Hyaluronidase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., Pyrogenic exotoxin Streptococcal necrotising fascitis is caused by streptococcus pyogenes M types 1 and 3 strains forming pyrogenic exotoxin A.These strains have earned notoriety under the name "Flesh eating bacteria" and cause extensive necrosis of subcutaneous and muscular tissue and adjucent fascia which may be associated with severe systemic illness.', 'role': 'assistant'}]