Chikungunya Outbreak in Bolivia
The CDC has issued a Level 2 travel alert for chikungunya virus circulation in Santa Cruz and Cochabamba Departments in Bolivia as of February 2026.
About Chikungunya
Chikungunya is a mosquito-borne viral illness transmitted primarily by Aedes mosquitoes (the same vectors responsible for dengue and Zika). Symptoms typically appear 3–7 days after infection and include sudden fever, severe joint and muscle pain, headache, and rash. While fatalities are rare, joint pain can persist for weeks to months in some patients.
Prevention Measures
Travelers to affected areas should:
- Use EPA-registered insect repellents containing DEET (20–30%), picaridin, IR3535, oil of lemon eucalyptus, para-menthane-diol, or 2-undecanone
- Wear protective clothing: long sleeves, pants, and socks, especially during dawn and dusk when mosquitoes are most active
- Stay in air-conditioned or screened accommodations when possible
- Avoid standing water where mosquitoes breed
Health Considerations
There is currently no vaccine or specific antiviral treatment for chikungunya. Management is supportive, focusing on fever and pain management. Pregnant individuals should consider delaying travel to affected regions, as vertical transmission during pregnancy is possible.
Travelers should consult a travel medicine specialist at least 4–6 weeks before departure to Bolivia to discuss individual risk factors, preventive strategies, and any pre-existing conditions that may complicate travel.
Pharmacist's Note: While no pharmaceutical prevention exists for chikungunya itself, proper selection and application of insect repellents is critical. DEET-based products are most effective and well-tolerated; apply to exposed skin and clothing edges according to product labeling. Individuals with sensitive skin or those traveling with children should discuss repellent options with a pharmacist. Over-the-counter analgesics (acetaminophen, ibuprofen) may help manage symptoms if infection occurs, but medical evaluation is recommended for persistent joint pain.
Additional Resources
Visit the CDC Travel Health Notices page for updates and consult your healthcare provider before traveling to Bolivia.