With staff of 1,000, the Division covers a broad range of subject matter, including oversight of environmental investigations, lead poisoning, injury prevention, occupational health, food safety, childcare, radiation control, recreational and drinking water quality, air quality, climate health, vector control, veterinary public health and pest control. The Office of Vector Surveillance and Control (OVSC) is responsible for field and laboratory activities to detect vector-borne pathogens such as Zika virus, West Nile virus, and Lyme disease in mosquitoes and ticks, and to prevent their transmission to humans and other hosts.