The observed or calculated probability of the occurrence of an event, Xâe.g., toxic exposure, infection, etc.âin a population relative to its exposure to a specific hazard or pathogen. Absolute risk is risk stated without any context whatsoever.
Malaria is a serious infection. It is common in tropical countries such as parts of Africa, Asia and South America. Malaria is a disease caused by a parasite called Plasmodium that lives in mosquitoes.
Malaria is caused by Plasmodium parasites. The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called malaria vectors.. There are 5 parasite species that cause malaria in humans, and 2 of these species â P. falciparum and P. vivax â pose the greatest threat. P. falciparum is the most prevalent malaria parasite on the African continent. It is responsible for most malaria-related deaths globally.