"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 coronavirus (COVID-19) on nose and throat swabs, week ending 3 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,0.61,0.54,0.68,"332,900","296,700","368,700",1 in 160,1 in 180,1 in 150
Wales,0.30,0.17,0.45,"9,000","5,300","13,600",1 in 340,1 in 570,1 in 220
"Northern
Ireland",0.33,0.16,0.57,"6,100","3,000","10,500",1 in 300,1 in 610,1 in 170
Scotland,1.01,0.78,1.27,"53,200","41,300","67,000",1 in 100,1 in 130,1 in 80
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,"Official reported estimates are plotted at a reference point believed to be most representative of the given week. 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."