Mpox: Basic Information

Mpox is a rare but potentially serious disease that is caused by the mpox virus. Mpox virus is from the same family of viruses as the smallpox virus. It is also less severe and transmissible than smallpox. Mpox can spread from infected humans, animals, and materials contaminated with the virus.

Mpox virus is characterized by a new, unexplained rash and skin lesions. It is usually found in Central and West Africa and normally does not spread in the United States. In May 2022, mpox began spreading in countries where the virus normally is not found, including in the United States. In this global outbreak, cases are linked to prolonged close, personal contact with other people who are sick.

Illustration of monkey pox virus

The CDC (Centers for Disease Control and Prevention) continue to receive reports of cases that reflect ongoing community transmission in the United States and internationally. Mpox is not currently a risk for most people, however vaccination is still recommended for gay, bisexual, and other men who have sex with men.


Mpox 101


Questions about mpox? Contact us! Phone: 608-267-9003 | Fax: 608-261-497

Wisconsin Local Health DepartmentsRegional officesTribal agencies

Last revised August 9, 2023