MISSION, Kan. (AP) — Public pools will look very different this summer if they open at all with the coronavirus threat still looming, as teenage lifeguards will be tasked with maintaining social distancing and spotting COVID-19 symptoms in addition to their primary responsibility of preventing drownings.

Pools that do plan to open will take precautions, including screening temperatures on entry, requiring lifeguards to wear masks and significantly reducing the number of swimmers allowed in the water and locker rooms, said Dr. Justin Sempsrott, the medical director for the lifeguard certificati...