<prompt> Most sensitive index of recent transmission of malaria in community:Spleen rateInfant parasite rateAnnual parasite rateSlide positivity rate  <response>: Ans. is bAnnual parasite index measures incidence, spleen rate measures endemicity, ABER-Annual blood examination rate index of operational efficiency and SPR slide positivity rate - forecasting malaria and defining any area to be high risk or low risk. 