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.
In regions where there is a high rate of malaria infection, malaria can be spread in other ways than through a mosquito bite, such as through contaminated blood transfusions, transplantation of contaminated organs and shared drug needles.