New York State Department of Health Issues Health Advisory to Providers About Rise in Chikungunya Virus Cases

Outbreaks and Cases Reported in Italy, China, Africa and Sri Lanka

Department Encourages International Travelers to Take Precautions

ALBANY, N.Y. (August 26, 2025)– The New York State Department of Health today announced the issuance of a Health Advisory for healthcare providers regarding a rise in cases of chikungunya virus around the world, following outbreaks in several other areas including China, Sri Lanka and several countries in Africa. The Centers for Disease Control and Prevention (CDC) has issued Level 2 Travel Health Notices for Bolivia, the Indian Ocean region and China.

"While no locally transmitted cases of chikungunya virus have been reported in New York State, the Department urges New Yorkers who are traveling internationally to take precautions," State Health Commissioner Dr. James McDonald said. "The Department encourages those traveling to affected areas to take steps to avoid mosquito bites and see a doctor immediately if symptoms occur."

Chikungunya is a disease caused by the bite of a mosquito infected with the chikungunya virus. The disease is most often spread to people by chikungunya-infected Aedes aegypti and Aedes albopictus mosquitoes.

Previously, the only cases of this disease in the United States were of people who traveled internationally to areas where infection is prevalent. However, in recent years mosquito transmitted cases have been reported in the U.S, but none have occurred in New York State. Aedes aegypti mosquitoes are not found naturally in New York

The most common symptoms of chikungunya are fever and joint pain, which can be severe and disabling. Other symptoms may include headache, muscle pain, and rash. Symptoms of chikungunya generally occur three to seven days after a bite from an infected mosquito. There is no specific treatment for CHIK.

Prevention tips for travelers include:

  • Using an EPA-registered insect repellent containing DEET, picaridin, or oil of lemon eucalyptus.
  • Wearing long-sleeved shirts and long pants, especially during peak mosquito activity.
  • Sleeping in air-conditioned rooms or under mosquito nets when possible.
  • Eliminating standing water around living areas to reduce mosquito breeding sites.

A CHIKV virus-like particle vaccine (VIMKUNYA) is available in the United States. This vaccine is licensed for people aged 12 years and older and should be considered for some travelers at higher risk of exposure to CHIKV and for some laboratory workers. New Yorkers should speak with their healthcare providers prior to travel if they will be going to an area with risk of CHIKV transmission.

New Yorkers returning from international travel who develop fever and joint pain are advised to contact a health care provider and mention their travel history. Early diagnosis helps prevent further spread and ensures appropriate care.