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Table 1 Positivity rates obtained for norovirus in fecal samples from children with acute gastroenteritis, from Manaus, Amazonas, Brazil, between 2010 and 2014, using an enzyme immunoassay (EIA) and polymerase chain reaction (PCR)

From: Molecular epidemiology and temporal evolution of norovirus associated with acute gastroenteritis in Amazonas state, Brazil

Sample/Year 2010 Pos/Total (%) 2011 Pos/Total (%) 2012 Pos/Total (%) 2013 Pos/Total (%) 2014 Pos/Total (%) TOTAL Pos/Total (%)
Tested by EIA 58/162 (35,8) 69/264 (26,1) 97/285 (34) 63/155 (40,6) 62/187 (33,1) 349/1053 (33,1)
Tested by PCRa 18/36 (50) 26/33 (78,8) 58/70 (82,9) 42/52 (80,8) 45/59 (76,3) 189/250 (75,6)
  1. Pos Positive, EIA enzyme immunoassay, PCR polymerase chain reaction
  2. aPositive by at least one region of the genome