In area having annual parasite index of less than 2, the following is to be done -
Park's textbook of preventive and social medicine 23rd edition. *API is a sophisticated measure of malaria incidence in a community. It is based on intensive active and passive surveillance and cases are confirmed by blood examination.
Passive surveillance only
2 rounds of DDT yearly
Entomological surveillance
All positive cases blood smear to be done monthly
Health programmes in India