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Table 2 Distribution of individual blood donors according to exposure status and P . falciparum subclinical infections in a cross-sectional study design, São Paulo State, Brazil, Aug 2008–Mar 2010

From: Detection of Plasmodium falciparum and Plasmodium vivax subclinical infection in non-endemic region: implications for blood transfusion and malaria epidemiology

  Disease (+) Disease (−) Total Prevalence*
Exposed (+) 53 447 500 10.60
Exposed (−) 4 604 608 0.66
Total 57 1,051 1,108 5.14
  1. *Cases per 100 population units.
  2. Prevalence ratio (95% CI) = 16.11 (5.87, 44.21).