How germy is the public pool? An infectious disease expert weighs in on poop, pee and perspiration – and the deceptive smell of chlorine

On hot summer days, few things are more refreshing than a dip in the pool. But have you ever wondered if the pool is as clean as that crystal blue…

What if every germ hit you at the exact same time? An immunologist explains

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. What would happen if all…