Table 5.
- Tests performed and positive for PCR detection of gastrointestinal viruses, during the same cold months in 2017–2018, 2018–2019, 2019–2020 and 2020–2021.
| Viruses | Tests | Positive | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017-2018 | 2018-2019 | 2019-2020 | 2020-2021 | 2017-2018 | 2018-2019 | 2019-2020 | 2020-2021 | |||||||||
| N | N | N | N | N | % | p value | N | % | p value | N | % | p value | N | % | ||
| Adenovirus | 661 | 369 | 380 | 642 | 61 | 9.2 | <0.001 | 14 | 3.8 | 0.8 | 31 | 8.2 | 0.001 | 22 | 3.4 | |
| Astrovirus | 0 | 369 | 368 | 619 | 0 | 0.0 | - | 6 | 1.6 | 0.003 | 5 | 1.4 | 0.01 | 0 | 0.0 | |
| Norovirus | 636 | 369 | 1026 | 664 | 59 | 9.3 | <0.001 | 31 | 8.4 | <0.001 | 56 | 5.5 | <0.001 | 13 | 2.0 | |
| Rotavirus | 661 | 369 | 380 | 661 | 64 | 9.7 | <0.001 | 9 | 2.4 | 0.3 | 5 | 1.3 | 0.03 | 24 | 3.6 | |
| Sapovirus | 0 | 369 | 369 | 619 | 0 | 0.0 | - | 5 | 1.4 | 0.03 | 8 | 2.2 | 0.002 | 1 | 0.2 | |