Table 3.
Number of possible reinfections in the MSIS laboratory database with divergent variant results
| Variant | First infection | Reinfections N (%) | Total N with reinfections | |||||
|---|---|---|---|---|---|---|---|---|
| N (%) | Alpha (%) | Delta (%) | Omicron (%) | Other variants (%) | Not variant screened (%) | N (%) | ||
| Screened and sequenced variants | Alpha | 37448 (100) | 0 (0) | 93 (0.2) | 698 (1.9) | 0 (0) | 3409 (9.1) | 4200 (11.2) |
| Delta | 119566 (100) | 0 (0) | 2 (<0.1) | 543 (0.5) | 0 (0) | 3150 (2.6) | 3695 (3.1) | |
| Omicron | 61615 (100) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (<0.1) | 1 (<0.1) | |
| Other variants | 9648 (100) | 5 (0.1) | 40 (0.4) | 162 (1.7) | 1 (<0.1) | 865 (9.0) | 1073 (11.1) | |
| Not variant screened | 540478 (100) | 29 (<0.1) | 375 (0.1) | 1921 (0.4) | 23 (<0.1) | 10332 (1.9) | 12680 (2.3) | |
| TOTAL | 768755 (100) | 34 (<0.1) | 510 (0.1) | 3324 (0.4) | 24 (<0.1) | 17757 (2.3) | 21649 (2.8) | |
| Variant waves including screened and sequenced variants | Variant | N (%) | Alpha (%) | Delta (%) | Omicron (%) | Other variants (%) | Not in wave or variant screened (%) | N (%) |
| Alpha | 53962 (100) | 23 (<0.1) | 327 (0.6) | 4958 (9.2) | 1 (<0.1) | 825 (1.5) | 6134 (11.4) | |
| Delta | 215670 (100) | 0 (-) | 89 (<0.1) | 6289 (2.9) | 1 (<0.1) | 994 (0.5) | 7373 (3.4) | |
| Omicron | 349782 (100) | 0 (-) | 0 (-) | 1 (<0.1) | 0 (-) | 0 (-) | 1 (<0.1) | |
| Other variants | 52262 | 95 (0.2) | 414 (0.8) | 4284 (8.2) | 60 (<0.1) | 898 (1.7) | 5751 (11.0) | |
| Not in wave or variant screened | 97079 (100) | 34 (<0.1) | 188 (0.2) | 1808 (1.9) | 4 (<0.1) | 356 (0.4) | 2390 (2.5) | |
| TOTAL | 768755 (100) | 152 (<0.1) | 1018 (0.1) | 17340 (2.3) | 66 (<0.1) | 3073 (0.4) | 21649 (2.8) | |
Number of possible reinfections with divergent variant results based on Whole Genome Sequencing or variant screening or variant waves, primary and secondary infection, using a minimum interval of 60 days between re-infections, or having two results of different variant