The following statistics show the percentage of the population that are estimated to have antibodies against SARS-CoV-2, the specific virus that causes coronavirus (COVID-19).
In the week beginning 28 March 2022, the percentage of the population that were estimated to have antibodies against SARS-CoV-2 at or above a threshold of 179 nanograms per millilitre (ng/ml) was:
- in England, 98.9% of the adult population (95% credible interval: 98.6% to 99.1%)
- in Wales, 98.8% of the adult population (95% credible interval: 98.4% to 99.1%)
- in Northern Ireland, 99.2% of the adult population (95% credible interval: 98.7% to 99.6%)
- in Scotland, 99.0% of the adult population (95% credible interval: 98.6% to 99.2%)
- across the UK, the percentages for children ranged from 95.3% to 97.6% for those aged 12 to 15 years and from 83.7% to 85.9% for those aged 8 to 11 years
2. Antibodies by age group
In the week beginning 28 March 2022, the percentage of the adult population estimated to have antibodies against SARS-CoV-2 at or above a threshold of 179 nanograms per millilitre (ng/ml) remained high across all regions of England. Regional data and percentages of the population who are estimated to have antibodies at or above the previously reported antibody threshold of 42 ng/ml, and the higher antibody threshold of 179 ng/ml, can be found in our Coronavirus (COVID-19) antibody data for the UK dataset.
Figure 1: The percentage of the population who are estimated to have antibodies against SARS-CoV-2 remained high for those aged 8 years and over across the UK in the week beginning 28 March 2022
Modelled percentage of the population with levels of antibodies against SARS-CoV-2 at or above a threshold of 179 nanograms per millilitre (ng/ml), by age group, UK countries, 7 December 2020 to 3 April 2022
Notes:
- All results are provisional and subject to revision.
- These statistics refer to antibody tests for individuals living in private households.
- In Northern Ireland, the number of people sampled is low compared with England, Wales and Scotland; therefore, adults aged 50 to 69 years are included in the same age group, and those aged 70 years and over are included in the same age group.
- All estimates are subject to uncertainty, given that a sample is only part of the wider population. A credible interval gives an indication of the uncertainty of an estimate from data analysis.
- The denominators used for antibodies are the total for each age group in the sample at that particular time point, then post-stratified by the mid-year population estimate.
- Estimates show the percentage of the population who are estimated to have antibodies against SARS-CoV-2 at or above a threshold of 179 ng/ml.
- Estimates for children aged 8 to 15 years are not available before 29 November 2021.
