Skip to main content

Table 4 Relationship between parasite density and positive tests by nested PCR of saliva and urine samples from malaria patients with single infections.

From: Comparative detection of Plasmodium vivax and Plasmodium falciparum DNA in saliva and urine samples from symptomatic malaria patients in a low endemic area

Specimen

Parasites/μl

No. positives/Total positives by blood PCR (%)

  

P. falciparum

P. vivax

Saliva

   
 

<1,000

5/7 (71.4)

2/3 (66.7)

 

>1,000

25/34 (73.5)

30/33 (90.9)

 

>5,000

23/27 (85.2)

15/16 (93.8)

 

>10,000

18/19 (94.7)

11/12 (91.7)

 

>50,000

8/8 (100)

-

Urine

   
 

<1,000

2/7 (28.6)

0/3 (0)

 

>1,000

17/34 (50.0)

13/33 (39.4)

 

>5,000

11/27 (37.0)

6/16 (37.5)

 

>10,000

10/19 (52.6)

4/12 (33.3)

 

>50,000

5/8 (62.5)

-

  1. Note: Co-existence of both malaria species in three isolates was excluded from analysis.