Why do Colds and Flu Increase During Winter Every winter there’s an increase in the number of people who get viral diseases like colds and flu. The number of cases typically starts rising in early December, peaks in January and February, and then drops back off in March. Why is this so? In the past people ascribed these illnesses to being exposed to cold weather. That’s why these viral infections are often called colds. Even today […]
Daily Archives: December 21, 2021
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