Not Just the Flu: Chickenpox, Measles and Polio Are Also Seasonal

(Inside Science) -- During the height of the polio epidemic in the U.S. in the 1940s and '50s, parents often kept their children away from swimming pools, concerned that the disease, which peaked in the summer, was frequently spread through the water. But this fear couldn't account for the summertime outbreaks around the world where public pools were not as common. Then in 2001, Scott Dowell, a researcher from the Centers for Disease Control and Prevention, published a paper hypothesizing