Malaria immunity in individuals previously resident in a malarious area
People who live and remain in malarious areas develop immunity against malaria after repeated infections. However this immunity is not life-long
- if a person migrates from a malaria endemic area to a non-malarious area it is not possible to give a precise time when such immunity is lost
- the advice is for malaria chemoprophylaxis and mosquito bit prevention to be used by all immigrants visiting their home country (malarious area), irrespective of the time period they have been away from their home country
Reference
- Yman V et al. Antibody responses to merozoite antigens after natural Plasmodium falciparum infection: kinetics and longevity in absence of re-exposure. BMC Med (2019) 17:22
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