"Table 1: Official reported estimates of the percentage of the population testing positive for COVID-19, UK countries "
"Estimated percentage of the population testing positive for the coronavirus (COVID-19) on nose and throat swabs, week ending 17 July 2021, UK "
Country,Estimated average % of the population that had COVID-19,95% credible interval,,Estimated average 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,1.36,1.26,1.46,"741,700","689,600","797,800",1 in 75,1 in 80,1 in 70
Wales,0.47,0.31,0.67,"14,400","9,500","20,500",1 in 210,1 in 320,1 in 150
Northern Ireland,0.59,0.31,0.98,"10,900","5,700","17,900",1 in 170,1 in 320,1 in 100
Scotland,1.24,0.98,1.53,"65,100","51,600","80,500",1 in 80,1 in 100,1 in 65
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. The 95% credible intervals are calculated so that there is a 95% probability of the true value lying in the interval.
2,Official reported estimates are plotted at a reference point believed to be most representative of the given week.
3,"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."