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Table 3 Prevalence of asymptomatic malaria infections in different seasons detected by microscopy and nRT-PCR

From: Risk factors for asymptomatic malaria infections from seasonal cross-sectional surveys along the China–Myanmar border

Diagnosis Parasite Early [n (%)] Peak [n (%)] Late [n (%)] Total [n (%)] P value1
Microscopy P. vivax 9 (1.7) 13 (2.3) 3 (0.5) 25 (1.5) 0.066
P. falciparum 0 0 0 0
Mixed infection 0 0 0 0
Total 9 (1.7) 13 (2.3) 3 (0.5) 25 (1.5) 0.066
nRT-PCR P. vivax 95 (18.4) 152 (26.3) 105 (17.9) 352 (21.0) 0.001
P. falciparum 0 14 (2.4) 18 (3.1) 32 (1.9) < 0.001
Mixed infection 0 8 (1.4) 1 (0.2) 9 (0.5) 0.002
Total 95 (18.4) 174 (30.1) 124 (21.2) 393 (23.4) 0.001
  1. 1Chi square test or Fisher’s exact test for comparison among different seasons. Significant at P < 0.05. Mixed infection—P. falciparum and P. vivax