Malaria is a parasitic infection caused by the bite of female mosquitoes.
Symptoms include fever, chills, sweating, muscle pain, headache and vomiting. Infection can be severe and fatal if not treated quickly.
How can it be prevented?
The preventative A, B, C, D approach:
Awareness of risk. Find out if there is a risk of malaria before travelling, using country specific information
Bite prevention. Wear loose, long-sleeved tops and trousers. Use a repellent on any exposed skin. Spray insecticide in bedrooms and on clothing. In an unscreened room, use a mosquito net impregnated with insecticide
Chemoprophylaxis. Find out if you need antimalarial tablets for your destination. Use our online consultation to buy the best type to use for the area visiting and taking into account your current medical history.
Diagnosis and prompt treatment. It’s important for you to seek urgent help if you notice any symptoms. These can appear six days after exposure or up to 30 days after leaving a malarial area.
More info here