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

Table 4 Outcomes of PCD, and disaggregated RACD and PACD in 2019

Case surveillance (sub) categories	No. of blood smears			Yield per 100,000 smears
Case surveillance (sub) categories	Examined	(%)	Positive	Yield per 100,000 smears
PCD	352,313	(48.6)	47	13.3
RACD
Travel-cohorts	372	(0.1)	3	806.5
Spatial-cohorts*	21,876	(3.0)	0	0
PACD
Travel-cohorts	6,688	(0.9)	3	44.9
Spatial-cohorts	343,900	(47.4)	0	0

* Primary and secondary screening of residents of households within 1 km radius from the residence of the index case

ISSN: 1475-2875