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Table 2 Rate of rotavirus A (RVA) detection by age group and rate of detection of distinct RVA genotypes in the ore- and post-vaccination periods in Brazil, 1996–2017

From: The evolving epidemiology of rotavirus A infection in Brazil a decade after the introduction of universal vaccination with Rotarix®

  1996 to 2005 (pre-vaccination period) 2006 to 2017 (post-vaccination period) p-value (chi-square test)
Age group
 1–3 months 108/587 (18.4%) 91/729 (12.5%) 0.003
 4–11 months 668/2006 (33.3%) 415/2547 (16.3%) <  0.001
 12–24 months 607/2154 (28.2%) 680/3068 (22.2%) <  0.001
 25–48 months 215/1235 (17.4%) 505/1782 (28.3%) < 0.001
 49–144 months 164/1048 (15.6%) 332/1556 (21.3%) < 0.001
 Total 1762/7030 (25.1%) 1903/9155 (20.8%) < 0.001
RVAa genotypes
 G1P [8] / G1P[NTb] 417/855 (48.8%) 118/1835 (6.4%) < 0.001
 G2P [4] / G2P[NT] 47/855 (5.5%) 838/1835 (45.7%) <  0.001
 G3P [8] / G3P[NT] 55/855 (6.4%) 253/1835 (13.8%) < 0.001
 G9P [8] / G9P[NT] 238/855 (27.8%) 152/1835 (8.3%) <  0.001
 G12P [8] / G12P[NT] 249/1835 (13.6%) < 0.001
  1. aRotavirus A; bNot typed