Question

Why winter season is riskfactor of rheumatic fever?

Answer 1

Explanation:

Rheumatic fever happens more often in the winter and spring. This is because strep throat infections occur more often in these seasons. Strep is contagious. This means it can be spread from child to child. But rheumatic fever is not contagious.

Answer 2

This infection causes swelling and muscle damage to the heart. It can also damage the heart valves in a way that keeps the blood from moving through the heart normally. The infection can cause heart valve leaflets to stick together, which narrows the valve opening.