"Table 1: Official reported estimates of percentage testing positive, UK countries "
"Estimated percentage of the population testing positive for the coronavirus (COVID-19) on nose and throat swabs, week ending 2 May 2021, UK "
Country,Estimated average % of the population that had COVID-19,95% Credible Interval,,Estimate of the number of people testing positive for COVID-19,95% Credible Interval,,Estimated average ratio of the population that had COVID-19,95% Credible Interval,
,,Lower,Upper,,Lower,Upper,,Lower,Upper
England,0.08%,0.07%,0.10%,"46,100","36,300","56,900","1 in 1,180","1 in 1,500",1 in 960
Wales,0.05%,0.01%,0.11%,"1,500",400,"3,400","1 in 2,070","1 in 7,540",1 in 890
Northern Ireland,0.13%,0.05%,0.27%,"2,400",900,"5,000",1 in 750,"1 in 2,160",1 in 370
Scotland,0.13%,0.07%,0.22%,"6,900","3,600","11,600",1 in 760,"1 in 1,480",1 in 450
Source: ,Source: Office for National Statistics – Coronavirus (COVID-19) Infection Survey
Notes
1,"All estimates are subject to uncertainty, given that a sample is only part of the wider population. The model used to provide these estimates is a Bayesian model: these provide 95% credible intervals. A credible interval gives an indication of the uncertainty of an estimate from data analysis. 95% credible intervals are calculated so that there is a 95% probability of the true value lying in the interval. "
2,"Please note, these ratios do not represent a person's risk of becoming infected, since risk of infection depends on a number of factors such as contact with others or whether a person has been vaccinated."