Table 1.
Laboratory results for the investigation of viral gastroenteritis in 11,800 samples tested at the National Virus Reference Laboratory (NVRL), aged 0–5 years in 2015–2019.
| Results (%) by Year | Total | |||||
|---|---|---|---|---|---|---|
| Virus Detected | 2015 | 2016 | 2017 | 2018 | 2019 | |
| Rotavirus-wild-type | 662 (15.03) | 519 (13.09) | 250 (15.49) | 53 (4.42) | 70 (5.93) | 1554 |
| Rotavirus-Rotarix | 0 (0.00) | 1 (0.03) | 61 (3.78) | 49 (4.08) | 69 (5.84) | 180 |
| Norovirus | 482 (10.94) | 492 (12.41) | 210 (13.01) | 158 (13.17) | 141 (11.94) | 1483 |
| Adenovirus F | 156 (3.54) | 155 (3.91) | 101 (6.26) | 64 (5.33) | 47 (3.98) | 523 |
| Sapovirus | 202 (4.59) | 167 (4.21) | 85 (5.27) | 72 (6.00) | 33 (2.79) | 559 |
| Astrovirus | 197 (4.47) | 121 (3.05) | 77 (4.77) | 68 (5.67) | 53 (4.49) | 516 |
| No virus detected | 2705 (61.42) | 2511 (63.31) | 830 (51.43) | 736 (61.33) | 768 (65.03) | 7550 |
| Total samples tested | 4199 | 3787 | 1499 | 1159 | 1156 | |
| Total results | 4404 a | 3966 b | 1614 c | 1200 d | 1181 e | |
a 185 dual infections, 10 triple infections b 154 dual infections, 11 triple infections, 1 quadruple infection, c 93 dual infections, 8 triple infections, 2 quadruple infections d 41 dual infections e 25 dual infections. Additional viruses detected in Rotarix samples, 2017: norovirus n = 3, adenovirus F n = 1, astrovirus n = 2; 2018: norovirus n = 8, adenovirus F n = 1; 2019: norovirus n = 3, sapovirus n = 1, astrovirus n = 1.