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Estimates of the rate of variant strain production as a proportion of new cases due to transmission appearing per month
| NGD | Ratea | R2 |
|---|---|---|
| 1 | 0.1384 | 0.9997 |
| 2 | 0.0998 | 0.9983 |
| 3 | 0.0644 | 0.9930 |
| 4 | 0.0445 | 0.9988 |
The rate was calculated as the number of variant strains that could be linked by NGD to an identifiable source strain divided by the total number of observed transmissions from month 19 to the end of the study.
