<prompt> API 2 criteria and management of it-Regular 2 round of Insecticide spraySurviHence every fortnightPresumptive treatment of all fever casesAll of the above  <response>: Ans. is d i.e., All of the above Annual Parasite Incidence API Used for malarial surveillance in general population. Number of parasitologically confirmed malaria casesyear 1000 population at risk x 10000 Calculated by slide positively rate SPR The area is classified as API more than 2 and less than 2 Areas having Annual Parasite Index API 2 Regular 2 rounds of insecticidal spray with DDT7 Malathion Synthetic Pyrethroids at the dose of l, 2, 0.5 mgs, meter respectively. Entomological assessment for vector behavior and development of insecticidal resistance Active and passive surveillance is carried out on regular basis every fortnight. Presumptive Treatment to all fever cases and radical treatment to all slide positive cases is given Areas having Annual Parasite Index!API 2 A regular spray is not carried out but focal spray is carried out around falciparum cases detected during surveillance Regular passive sureillance once in a fortnight Treatment -All positive cases to receive radical treatment Follow up- All positive cases to be followed up for I year at monthly intervals after completion of radiccradicalment Epidemiological investigation of all malaria positive cases .This may also include mass blood survey. 