Monthly Archives: April 2020

Herd Immunity

Note: My definition of Herd Immunity is the total % of the population who get infected once the epidemic has completely finished. Most people define it as just the % of the population infected onceĀ  the peak is reached. This … Continue reading

Posted in Public Health, Uncategorized | 16 Comments

The R value

We constantly hear at the UK daily Covid press conferences that we must keep R <1 to avoid a second wave of infections. Prof. Chris Witty warns us that if R goes above 1 then we will see an “exponential” … Continue reading

Posted in Public Health | 13 Comments

EU Coronavirus comparisons

The number of infections in European countries is still very uncertain. This means that the only hard numbers we have for comparison are total deaths recorded. This isĀ  usually shown as a logarithmic plot for each country, but this fails … Continue reading

Posted in Public Health | 29 Comments