Hello, and thanks for your question.
Check with your doctor if you need boosters or vaccinations for measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis (DPT) vaccine, varicella (chickenpox) vaccine, polio vaccine, and your yearly flu shot. In addition, it is recommended to get the following vaccinations: Hepatitis A and Typhoid.
Here is more information at this travel website:
Zika virus outbreaks have been reported in Costa Rica, so if you are a pregnant woman, you should not travel there. Bring a good supply of mosquito repellant containing DEET to spray on yourself and your clothing and try to wear long sleeves and long pants with socks, when possible.
Try to drink bottled water as opposed to tap water and just be vigilant.
I wish you a great trip!
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