Malaria is a parasitic infection caused by an infected Anopheles mosquito bite. About a quarter-billion infections occur annually, of which more than half million die each year. Symptoms include high fever, body aches and rigors (intense shivering) with risks involving vital organs like your brain (causing confusion and coma), liver (jaundice), and kidneys (renal failure).
Travellers can get Infected in most parts of Africa, Asia, Central and South America, the Caribbean and South Pacific.
Most travellers are not aware of such a risk and do not seek a pre-travel consultation.
Prevention:
All travellers should use a good and approved mosquito repellent and use chemoprophylaxis (preventive medication) when indicated after visiting a travel medicine doctor.