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': 'All of the following conditions are commonlyassociated with a group A, b-hemolytic streptococci infection except one. Which one is the exception? \nSelect and explain. \nA. Scarlet fever., B. Toxic shock syndrome., C. Pharyngitis., D. Endocarditis.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Endocarditis is most commonly caused by group B, α-hemolytic streptococci, such as S. viridans, S. mutans, S. sanguis, and S. salivarius. All of the other conditions are associated with group A β-hemolytic streptococcal infections, such as S. pyogenes.', 'role': 'assistant'}]