Beaches across Delaware, Maryland, and Virginia have been closed to swimmers due to the washing ashore of medical waste, including used hypodermic needles and feminine hygiene products. The closures affect a nearly 50-mile stretch of coast, from Fenwick Island, Delaware, to Chincoteague, Virginia, with officials urging the public to avoid ocean activities and wear shoes on the beach. The National Park Service has stated they are investigating the source of the waste but have no current leads. As of now, there have been no reported injuries from encounters with the waste, but the cleanup remains ongoing, and it is unclear how long the closures will last. Local authorities are working with health departments to ensure safety and manage the situation. The public is advised to stay updated on the developments as this is a rapidly evolving situation.