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Table 2 Prevalence of infection by P. vivax (Pv total), P. vivax gametocytes (Pv gam), P. falciparum (Pf total) and P. falciparum gametocytes (Pf gam) as determined by light microscopy and PCR. Microscopy data available only for cross-sectional survey (CS) 1, overall prevalence by PCR determined as 18S rDNA copies/μl by qPCR, gametocyte prevalence by PCR determined by RT-qPCR (pvs25 transcripts/μl)

From: High proportions of asymptomatic and submicroscopic Plasmodium vivax infections in a peri-urban area of low transmission in the Brazilian Amazon

  CS1 Microscopy (n = 2010) CS1 PCR (n = 2010) CS2 PCR (n = 2073)
  n % Median paras./μl IQR n % Median cop./transcr./μl IQR n % Median cop./transcr./μl IQR
Pv total 32 1.8 195.0 60.0–555.0 86 4.3 21.8 6.0–246.4 70a 3.4 35.0 12.3–273.0
Pv gam 18b 1.0 60.0 30.0–60.0 43 2.1 11.4 3.8–85.1 30a 1.4 44.6 13.5–175.1
Pf total 11 0.5 240.0 90.0–600.0 15 0.8 151.8 8.1–681.3 1a 0.05 5.1
Pf gam 9b 0.4 150.0 60.0–270.0 14 0.7 434.9 40.0–1272.8 1a 0.05 154.8
  1. aIncluding one Pf/Pf mixed infection
  2. bOne slide was negative for asexual blood stages