Table 1.
SARS-CoV-2 positivity among influenza cases and influenza-test negatives by sample week in England from 20 January 2020 to 25 April 2020
| Week | Influenza-positive |
Influenza-negative |
||||||
|---|---|---|---|---|---|---|---|---|
| SARS-CoV- 2-negative | SARS-CoV- 2-positive | Total | SARS-CoV-2 positivity (%) | SARS-CoV- 2-negative | SARS-CoV- 2-positive | Total | SARS-CoV-2 positivity (%) | |
| 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | – |
| 2 | 0 | 0 | 0 | – | 1 | 0 | 1 | 0 |
| 3 | 0 | 0 | 0 | – | 4 | 0 | 4 | 0 |
| 4 | 12 | 0 | 12 | 0 | 34 | 0 | 34 | 0 |
| 5 | 11 | 0 | 11 | 0 | 60 | 0 | 60 | 0 |
| 6 | 34 | 0 | 34 | 0 | 323 | 6 | 329 | 1.8 |
| 7 | 58 | 0 | 58 | 0 | 583 | 2 | 585 | 0.3 |
| 8 | 53 | 0 | 53 | 0 | 329 | 9 | 338 | 2.7 |
| 9 | 189 | 0 | 189 | 0 | 1471 | 22 | 1493 | 1.5 |
| 10 | 125 | 11 | 136 | 8.1 | 1211 | 113 | 1324 | 8.5 |
| 11 | 330 | 12 | 342 | 3.5 | 2957 | 483 | 3440 | 14.0 |
| 12 | 145 | 20 | 165 | 12.1 | 2322 | 783 | 3105 | 25.2 |
| 13 | 25 | 6 | 31 | 19.4 | 1342 | 1092 | 2434 | 44.9 |
| 14 | 4 | 8 | 12 | 66.7 | 1072 | 1022 | 2094 | 48.8 |
| 15 | 4 | 1 | 5 | 20.0 | 839 | 496 | 1335 | 37.2 |
| 16 | 0 | 0 | 0 | – | 758 | 303 | 1061 | 28.6 |
| 17 | 1 | 0 | 1 | 0 | 451 | 111 | 562 | 19.8 |