Table 1 Criteria for donor blood screening, according to the Portuguese Institute for Blood and Transplantation
From: Post-exposure serological responses to malaria parasites in potential blood donors
Risk category | Guidelines |
|---|---|
Individuals who lived the first 5Â years of life in endemic areas | Approved 3Â years after the last stay in endemic areas, since asymptomatic or approved 4Â months after return if serological or molecular tests are negative |
Previous episodes of malaria | Approved 3Â years after cessation of last symptoms/treatment and only if serological or molecular tests are negative |
Asymptomatic visitors (stays < 6 months) | Approved 1 year after returning of endemic areas or approved if serological or molecular tests are negative |
Febrile episodes undiagnosed during or 6Â months after a travel to endemic areas | Approved 3Â years after returning from endemic areas and cessation of symptoms or approved 4Â months after return if serological or molecular tests are negative |