Table 1.
Number of HAdV-positive fecal samples identify through laboratory-based surveillance by region and state in Brazil from 2018 to 2020, among rotavirus- and norovirus- negative samples.
| Region/State | No. of fecal samples—positive/tested (%) | p-value1 (Chi-square test) | ||||||
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | Total | 2018 vs. 2019 | 2018 vs. 2020 | 2019 vs. 2020 | Total | |
| Northeastern | 44/123 (35.8) | 29/73 (39.7) | 10/64 (15.6) | 83/260 (31.9) | 0.5799 | 0.0039 | 0.0018 | 0.0047 |
| Bahia | 21/70 | 17/47 | 10/63 | |||||
| Paraíba | 13/17 | 0/0 | 0/0 | |||||
| Pernambuco | 3/17 | 5/13 | 0/0 | |||||
| Rio Grande do Norte | 0/0 | 0/4 | 0/1 | |||||
| Sergipe | 3/11 | 7/9 | 0/0 | |||||
| Maranhão | 4/5 | 0/0 | 0/0 | |||||
| Southeastern | 26/122 (21.3) | 35/141 (24.8) | 5/49 (10.2) | 66/312 (21.2) | 0.5011 | 0.0883 | 0.0306 | 0.0972 |
| Espírito Santo | 6/33 | 11/65 | 0/4 | |||||
| Minas Gerais | 6/37 | 5/17 | 4/17 | |||||
| Rio de Janeiro | 14/52 | 19/59 | 1/28 | |||||
| Southern | 45/185 (24.3) | 45/177 (25.4) | 9/78 (11.5) | 99/440 (22.5) | 0.8088 | 0.0190 | 0.0124 | 0.0370 |
| Rio Grande do Sul | 26/102 | 19/91 | 8/53 | |||||
| Santa Catarina | 19/83 | 26/86 | 1/25 | |||||
| Total | 115/430 (26.7) | 109/391 (27.9) | 24/191 (12.6) | 248/1012 (24.5) | 0.7158 | < 0.0001 | < 0.0001 | 0.0001 |
1p-values were calculated by comparing the frequency of HAdV detection between the three years of the study (Total) and between each year for each region.