Foci classification | Current definition | Key interventions targeted at index households and at-risk neighbors |
---|---|---|
A1 | Active foci: village or subvillage with indigenous cases in the current year | Passive case detection, radical cure of all cases, 1–3-7, iDES, active case detection twice a year, vector control by IRS or ITN, health education on malaria |
A2 | Residual non-active foci: village or subvillage without indigenous cases in the current year but with indigenous cases in the previous 3 years | Passive case detection, radical cure of all cases, 1–3-7, iDES, active case detection once a year, vector control by IRS or ITN, health education on malaria |
B1 | Cleared foci but receptive: village or subvillage without indigenous cases for 3 consecutive years but vectors are found or environment is suitable for vector breeding | Passive case detection, radical cure for all cases, 1–3-7 for index cases |
B2 | Cleared foci but not receptive: village or subvillage without indigenous cases for 3 consecutive years but vectors are not found or environment is not suitable for vector breeding | Passive case detection, radical cure for all cases, 1–3-7 for index cases |