Coronavirus (Covid-19) Infection Survey – Antibody Data For Northern Ireland

Date published: 18 January 2023

The Department of Health today published a report on antibody data from the COVID-19 Infection Survey (CIS). The findings set out in this report relate to estimates for NI for the week beginning 28 November 2022.

covid latest stats

This report is part of the series of Northern Ireland publications from the COVID-19 Infection Survey. Further information can be found on the Department of Health website.

Key Findings

In this bulletin, we report percentages of the population that are estimated to have antibodies against SARS-CoV-2, the specific virus that causes coronavirus (COVID-19).

Estimates of antibody positivity at 2000 ng/ml, 4000 ng/ml and 6000 ng/ml are also presented in the bulletin. These levels have been introduced to enable enhanced monitoring of antibody levels and waning.

Notes to editors: 

  1. The Department of Health has been working along with the Public Health Agency, Northern Ireland Statistics and Research Agency and the Office for National Statistics (and its various survey partners) to extend the COVID-19 Infection Survey to Northern Ireland. Fieldwork in Northern Ireland began on 27 July 2020.
  2. All results are provisional and subject to revision. Due to the relatively small number of people who tested positive for antibodies within our sample, credible intervals are wide and therefore results should be interpreted with caution.
  3. These statistics refer to the presence of antibodies to the Coronavirus (COVID-19) within the community population, by which we mean private residential households. These figures exclude those in hospitals, care homes and/or other institutional settings.
  4. This report is part of the series of Northern Ireland publications from the COVID-19 Infection Survey. Positivity estimates are published on a weekly basis and antibody data fortnightly. Further information can be found on the Department of Health website.
  5. Further information about quality and methodology associated with the survey can be found on the ONS website.
  6. This publication is available online at:
  7. Additional information is available from:
    Information Analysis Directorate
    Department of Health
    Annex 2, Castle Buildings
    Stormont
    Belfast BT4 3SQ
    Telephone:    028 9052 2340         E-mail: statistics@health-ni.gov.uk

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