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Table 1 Estimated prevalence by thick blood smear test (TBS) and PCR of 1392 samples for species and type of malarial infection

From: Plasmodium malariae in the Colombian Amazon region: you don’t diagnose what you don’t suspect

 

No. of positives (prevalence)

Change in prevalence (%)a

TBS n (%)

PCR n (%)

Infective species

 Pf

104 (7.47)

255 (18.32)

10.85

 Pv

509 (36.57)

996 (71.55)

34.99

 Pm

0 (0.00)

538 (38.65)

38.65

Type of infection

 Pv/Pf

12 (0.86)

111 (7.97)

7.11

 Pv/Pm

0 (0.00)

340 (24.43)

24.43

 Pf/Pm

0 (0.00)

29 (2.08)

2.08

 Pv/Pf/Pm

0 (0.00)

52 (3.74)

3.74 

  1. Positive sample frequencies and prevalence estimations according to each diagnostic test
  2. TBS, thick blood smear; Pf, Plasmodium falciparum; Pv, Plasmodium vivax; Pm, Plasmodium malariae; co-infections are separated by a slash (/) sign
  3. aChange in prevalence was calculated as the difference between prevalence values for each diagnostic test