Loại vi khuẩn hiếu khí nào sau đây gây bệnh bằng độc tố:
Trả lời:
Đáp án đúng: B
The question asks for an aerobic bacteria that causes disease through toxins. None of the options (Bacteroides, Clostridia, Peptococci, and Peptostreptococci) are aerobic and primarily toxin-mediated in their pathogenesis. Bacteroides are anaerobic, and while Clostridia produce potent toxins, they are also anaerobic. Peptococci and Peptostreptococci are also anaerobic. Therefore, the question is flawed as it stands.