Tickborne Diseases

Powassan virus disease is a rare but serious illness caused by the bite of an infected tick. Three species of ticks found in Vermont can transmit the virus, but only one of these species – the blacklegged tick – commonly...

Anaplasmosis is a tick bite illness caused the bacterium Anaplasma phagocytophilum. It is spread by the bite of infected blacklegged ticks, the same tick that transmits Lyme disease, babesiosis, hard tick relapsing fever, and Powassan virus. It is also possible...

Babesiosis in Vermont is caused by an infection with a parasite called Babesia microti. It is transmitted to humans by the bite of infected blacklegged ticks, the same tick that transmits Lyme disease and anaplasmosis.

Climate Change Impacts Infectious Diseases

Ehrlichiosis is a disease caused by an infection with Ehrlichia bacteria. The bacteria are transmitted by the bite of a lone star tick, and may also be transmitted through blood transfusions.

Hard tick relapsing fever ( formerly known as Borrelia miyamotoi disease) is caused by the bacterium, Borrelia miyamotoi, which was first discovered in Japan in 1995. In the United States, the first human infections were reported in 2013. The first...

Lyme disease is the most commonly reported tick bite illness in Vermont.

Public Health GIS Maps The Health Department supports several web apps that address important public health issues using GIS technology. Some example use cases are: See if cyanobacteria blooms might affect your summertime water recreation plans. Find out if others...

Responding to climate change will benefit health now.