Table 2 Foci classification in Thailand
Foci classification | Current definition |
|---|---|
A1 | Active foci: village with indigenous cases in the current year |
A2 | Residual non-active foci: village without indigenous cases in the current year but with indigenous cases in the previous 3 years |
B1 | Cleared foci but receptive: village without indigenous cases for 3 consecutive years but vectors are found or environment is suitable for vector breeding |
B2 | Cleared foci but not receptive: village without indigenous cases for 3 consecutive but vectors are not found or environment is not suitable for vector breeding |