California issues advisory on a parasitic fly whose maggots can infest living humans
New World Screwworm is spreading north, infesting humans and animals and risking public health, livestock, and major economic harm in California and the U.S.
State's first human case of West Nile virus this year reported in Middlesex County
A 70-year-old Massachusetts woman tested positive for West Nile virus after exposure in Middlesex County; mosquito risk remains high in parts of Suffolk and Middlesex counties.