This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'Which of the following is common with Streptococcus infection? \nSelect and explain. \nA. Cellulitis, B. Gangrene, C. Pyoderma, D. UTI', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Microbiology by Ananthanarayan and Paniker, 8th ed. pg. 205SKIN AND SOFT TISSUE INFECTION BY STREPTOCOCCUS1. Erysipelas-diffuse infection involving the superficial lymphatics2. Impetigo-superficial infection of skin (pyoderma)3. Cellulitis-cellulitis is caused mainly by hemolytic streptococci. It specifically affects the dermis and subcutaneous fat.4. Lymphangitis* Gangrene-type of ischemic necrosis# Dry gangrene: Arterial obstruction# Wet gangrene: Venous obstruction* Pyoderma is most commonly caused by Staph Aureus', 'role': 'assistant'}]