Regarding leptospirosis, which of the following statements is INCORRECT?

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Rodent urine and feces are the primary sources of infection.IgM antibodies appear within 2 days of infection.The incubation period typically lasts around 10 days.The bacteria respond well to penicillin treatment.It is a bacterial zoonotic disease.

Explanation

Leptospirosis is transmitted through the urine and feces of rodents. The incubation period is usually about 10 days. Penicillin is effective against the causative bacteria. However, IgM antibodies generally do not appear as early as 2 days after infection, making that statement incorrect.