Chikungunya Virus: Symptoms, Transmission Routes, and Protection Methods

The chikungunya virus, transmitted through mosquito bites, is once again recognized as a serious threat to humanity. This disease has already spread to over 110 countries worldwide and can cause dangerous health complications.

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What You Need to Know About the Chikungunya Virus

Chikungunya is an acute viral disease characterized by sudden fever, body intoxication, and hemorrhagic manifestations. The name of the infection comes from a word in the Kimakonde language (Tanzania), meaning “to become bent,” as joint pain forces people to take on a characteristic posture. The virus was first identified in Tanzania back in 1952. Since 2004, the number of outbreaks has significantly increased, and the virus is now reported in countries across Asia, Africa, Europe, and the Americas.

Transmission Routes and Main Symptoms

Chikungunya is transmitted through the bites of Aedes aegypti and Aedes albopictus mosquitoes—the same ones that spread dengue and Zika viruses. These insects are primarily active during the day. The virus can enter a mosquito’s body if it bites an infected person and can then be transmitted again during subsequent bites.

The incubation period lasts from 2 to 12 days, most commonly 4–8 days after being bitten by an infected mosquito. The main manifestations of the disease include:

• sudden rise in temperature with severe joint pain;
• swelling of the joints, muscle pain, headache, nausea, fatigue, rashes;

Joint pain can be quite severe and debilitating, lasting from several days to months, and in some cases—even years. The symptoms of the disease are similar to those of dengue or Zika virus infection.

At-Risk Groups and Complications

Newborns are at the highest risk for severe illness, as they can become infected from their mothers during childbirth or in the first weeks of life, as well as elderly individuals with chronic diseases. Cases of complications and fatalities are rare and primarily occur in these patient categories.

Diagnosis, Treatment, and Prevention

The virus can be detected through a blood test, particularly using reverse transcription polymerase chain reaction within the first seven days of illness. There are currently no specific medications for chikungunya; treatment focuses on alleviating symptoms—using antipyretics, analgesics, ensuring adequate hydration, and rest.

The chikungunya virus poses a serious public health threat due to its rapid spread and the lack of specific treatment.

In several countries, two vaccines for at-risk groups have already been registered or recommended, but they are not yet widely available to the general population.

Prevention of infection includes:

• wearing closed clothing that protects the skin;
• using repellents containing DEET, IR3535, or picaridin;
• installing protective screens on windows and doors;
• eliminating mosquito breeding sites (removing standing water around residences).

The main method of preventing the spread of the infection remains controlling the population and breeding sites of the mosquito vectors. Adhering to these measures will help reduce the risk of infection.