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This is a blog about Covid-19 from a mathematical angle.
| Updated daily | Trendgraphs, CasesByAge |
| Updated hourly | LondonTraffic |
| Updated daily (for the moment) | Growth/shrinkage of Omicron and Delta in regions of England |
| 2 Dec 2021 | Early Omicron Growth Estimate |
| Jan-July 2021 | Vaccine effect |
| 30 May 2021 | Measuring growth in the UK in Variant of Concern B.1.617.2 / Delta (first found in India) |
| 8 May 2021 | Measuring vaccine efficacy against variants |
| 15 March 2021 | Estimate for the false positive rate / specificity of lateral flow device tests as used in UK schools |
| 6 December 2020 | Discussion of optimal suppression strategies |
| 23 September 2020 | Critique of a YouTube presentation by Ivor Cummins |
| 19 May 2020 | Note on Gomes et al, "Individual variation in susceptibility or exposure to SARS-CoV-2 lowers the herd immunity threshold" |