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Table 3 Performance of all three case surveillance strategies PCD, RACD and PACD in terms of the number of malaria infections detected, 2017–2019

From: A comparative analysis of the outcome of malaria case surveillance strategies in Sri Lanka in the prevention of re‐establishment phase

Year No. of blood smears by each case surveillance strategy
PCD* RACD* PACD*
2017
 Positive 56 1 0
 Examined 289,495 3,085 373,745
2018
 Positive 48 0 0
 Examined 298,072 10,509 375,045
2019
 Positive 47 3 3
 Examined 352,313 22,248 350,588
All years
 Positive 151 4 3
 Examined 939,880 35,842 1,099,378
 Yield per 100,000 smears 16.1 11.2 0.3
  1. * PCD-Passive Case Detection; RACD-Reactive Case Detection; PACD-Proactive Case Detection