Data and Maps for Mayaro

For Everyone

Key points

  • There have been no locally acquired cases of Mayaro virus disease (Mayaro) reported in the United States.
  • There have been cases reported in travelers to areas with risk in South America, Central America, and the Caribbean.
Illustration of planes flying around the world.

About Mayaro

Mayaro virus has been found in parts of South America, Central America, and the Caribbean. There have been no locally acquired cases of Mayaro reported in the United States, but imported human cases from travelers who visited endemic areas have been reported.

The primary vector of Mayaro virus is Haemagogus species mosquitoes. The enzootic transmission cycle involves these mosquitoes and non-human primates (e.g., monkeys). The risk for infection is greatest in persons living near or visiting forested areas.

Areas at risk

Brazil has reported the highest number of Mayaro cases. Several other countries have reported confirmed cases. Mayaro virus transmission might be unrecognized or unreported in other countries.

Map showing the distribution of Mayoro virus in the Americas.
Mayaro virus has been found in several parts of South America, Central America, and the Caribbean.
Laboratory-confirmed human disease cases

Brazil, Bolivia, Colombia, Ecuador, French Guiana, Haiti, Peru, Suriname, Trinidad and Tobago, Venezuela

Probable human disease cases and virus isolation from mosquitoes
Panama
Content Source
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
About This Page
Published: May 15, 2024
Updated: September 2, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: September 2, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.