Notes from the Field: The National Wastewater Surveillance System's Centers of Excellence Contributions to Public Health Action During the Respiratory Virus Season - Four U.S. Jurisdictions, 2022-23

Equine veterinarian Kathleen Mullen has fielded her fair share of strange calls. So when she received a question about some foals in Pennsylvania that were having difficulties swallowing, it seemed all part of a day’s work. Issues with swallowing—known as dysphagia—affect about 1 in 100 foals, but on this farm 5 of 10 foals were affected. She first thought the problem might be genetic, but close r