<prompt> A population of 100000 is under surveillance during a year. 100 cases were positive for malarial thick smear. 20 developed complications and 10 died among cases. What is the Annual parasite incidence?1 per 10002 per 100010 per 100020 per 1000  <response>: API 1 per 1000 API annual parasitic incidence 1. Best indicator of malaria control 2. ABER 10 3. API 2 - high risk area 