![]() ![]() To monitor the impact of vaccination on individual and community immunity and infection, this was increased. Initially, adults aged 16 years and over from around 20% of invited households were asked to provide a blood sample as well as a swab sample. ![]() During some phases of the pandemic, this was particularly important for informing policy decisions around schools. Children are included because it is essential to understand the prevalence and the incidence of symptomatic and asymptomatic infection in those aged under 16 years. We include children aged 2 years and over, adolescents and adults in the survey. People living in care homes, other communal establishments and hospitals are not included. This means that in all four countries only private households are included in the study. In Northern Ireland, the sample is selected by the Northern Ireland Statistics and Research Agency (NISRA) from people who have participated in NISRA and Office for National Statistics (ONS) surveys and have consented to be contacted again. The sample for the survey in England, Wales, and Scotland is primarily drawn from AddressBase, a commercially available list of addresses maintained by Ordnance Survey. The following sections in this article provide more detail on each of the stages shown in the chart. This flowchart shows how we collect, protect, analyse and disseminate all the data in our survey and emphasises the critical importance of our CIS participants in this process. the study guide, which explains to participants what taking part in the study entails - we also provide translations of the study guideįigure 1 provides an overview of the processes the survey data go through, to turn participants' swab and blood results into CIS bulletins and articles.the study protocol, which outlines the study design and rationale.the Quality and Methodology Information (QMI), which details the strengths and limitations of the data and methods used.the Characteristics of people testing positive for COVID-19 bulletin.the CIS Antibody and Vaccination data bulletin.the weekly CIS bulletin, which gives weekly headline statistics.We will continue to expand and develop these methods as the study progresses, updating the methodology guide when needed. The processes used after this transition are also included. This update includes the methods used from the start of the survey in May 2020 through to the transition period away from study worker home visit data collection to remote data collection in July 2022. This methodology guide provides information on the methods used to collect the data, process it, and calculate the statistics produced from the Coronavirus (COVID-19) Infection Survey. The nose and throat swabs taken from participants of the Coronavirus (COVID-19) Infection Survey are sent to the Lighthouse Laboratory in Glasgow for processing. We expanded the size of the sample from August to October 2020 and since 23 October 2020 have reported headline figures for all four UK nations. The Office for National Statistics (ONS) is working with the University of Oxford, IQVIA, Lighthouse Laboratory in Glasgow, UKHSA, the University of Manchester and the Wellcome Trust to run the study, which was launched in mid-April 2020 initially as a pilot in England. The survey also continues to provide important information about the socio-demographic characteristics of people and households who have contracted COVID-19. The results of the Coronavirus (COVID-19) Infection Survey contributed to the Scientific Advisory Group for Emergencies (SAGE) estimates of the rate of transmission of the infection, often referred to as “R”, and continues to contribute to epidemic estimates produced by the UK Health Security Agency (UKHSA). the number of people who would have tested positive for antibodies against SARS-CoV-2 at different levels. ![]() the average number of new positive test cases per week.how many people across England, Wales, Northern Ireland, and Scotland would have tested positive for a COVID-19 infection, regardless of whether they report experiencing symptoms.In response to the pandemic, the Coronavirus (COVID-19) Infection Survey (CIS) measures: The coronavirus (COVID-19) pandemic has had a profound impact across the UK. ![]()
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