Chikungunya

Chikungunya is a virus that’s spread by mosquitoes. It can’t be passed from person to person. The chikungunya virus infects humans through the bite of a mosquito. It causes fever and joint pain. It is rarely fatal, but the symptoms can be severe, long-lasting, and debilitating. The chikungunya virus is predominantly transmitted by a bite from an infected female mosquito. In general, it is not considered contagious; however, in rare cases, the virus can be transmitted through contact with an infected individual's blood.

Symptoms

• Most people infected with chikungunya virus will develop some symptoms.
• Symptoms usually begin 3–7 days after being bitten by an infected mosquito.
• The most common symptoms are fever and joint pain.
• Other symptoms may include headache, muscle pain, joint swelling, or rash.
• Chikungunya disease does not often result in death, but the symptoms can be severe and disabling.
• Most patients feel better within a week. In some people, the joint pain may persist for months.
• People at risk for more severe disease include newborns infected around the time of birth, older adults (≥65 years), and people with medical conditions such as high blood pressure, diabetes, or heart disease.
• Once a person has been infected, he or she is likely to be protected from future infections.