The Mississippi State Department of Health (MSDH) is confirming one new case of chikungunya virus in a Mississippi resident. The case occurred in a resident who recently returned from the Dominican Republic. This is the fourth case reported in a Mississippi resident. The three cases previously reported occurred in travelers to Haiti and the Dominican Republic.

Related: Dominican Republic chikungunya case count exceeds 250,000

A mosquito-borne illness traditionally found in Africa and Asia, chikungunya virus is now infecting more and more people throughout the Caribbean, and could infect Mississippians who travel there.

Symptoms of chikungunya infection include fever, muscle and joint pain, and swelling of the joints. Deaths from chikungunya virus are rare, but anyone with a compromised immune system is at higher risk of complications from the infection.

Additionally, the MSDH has detected West Nile virus (WNV)-positive mosquitoes in Hinds County. Mosquito testing is often done in counties where a higher number of human cases have occurred in previous years. WNV-positive mosquitoes indicate that WNV is circulating in the state and that all residents, regardless of location, should take precautions.

Related: Florida reports first autochthonous chikungunya cases in the US

So far, two human cases of WNV have been reported in Hinds and Newton counties this year. For more infectious disease news and information, visit and “like” the Infectious Disease News Facebook page