Because the onset of the pandemic scientists and researchers, aided and supported by the UK Well being Safety Company (UKHSA) and DHSC, have mobilised to create surveillance techniques which have infinitely improved our understanding of COVID-19.

These techniques assist us observe prevalence of the virus throughout the UK, detect new variants and in flip analyse each their transmissibility and severity. Taken collectively, these research enable us to know the general influence that completely different waves and variants have on communities, and the way it impacts completely different social, ethnic and age teams. With out them, the federal government’s capacity to make well timed public well being interventions can be severely hampered.

We now have now entered a brand new stage of managing COVID-19. Surveillance has allowed us to know the virus, however its vaccines which have impacted COVID-19’s capacity to make folks critically ailing. Over 50 million folks have now had a minimum of one jab, and almost 40 million have had three. Spring boosters at the moment are being given to essentially the most weak.

This, nevertheless, doesn’t imply the pandemic is over. COVID-19 should nonetheless be handled as a risk to public well being, which is why UKHSA will proceed to watch the virus by means of a number of completely different research.

COVID-19 An infection Survey (CIS)

The largest of those is the Workplace for Nationwide Statistics COVID-19 An infection Survey (CIS), a world-leading challenge that gives weekly information on prevalence ranges throughout the UK, in addition to additional very important info on the socio-demographic traits of the folks and households who’ve contracted the virus.

This 12 months, the dimensions of the an infection survey is being decreased slightly, with a mean of 9000 checks accomplished each day. Fashions will proceed to regulate in keeping with the traits of the pattern, to make sure estimates proceed to symbolize the inhabitants.

Crucially, although, CIS is not going to cut back its reporting. This implies we are going to proceed to see the Weekly An infection Survey bulletin, the weekly mortality stats and the fortnightly traits of individuals testing optimistic for COVID-19 and Antibody and Vaccination stories.

The survey is evolving to make it simpler for these concerned to take part. Members will be capable to publish their samples and fill in a digital questionnaire, somewhat than having face-to-face appointments at dwelling, whereas a telephone service will probably be obtainable to assist contributors.

Alongside the an infection survey, it is vital that we proceed to watch the unfold of the virus in high-risk settings.

Because of this each the SIREN and Vivaldi research will proceed to function within the subsequent 12 months.


SIREN, a UKHSA-led examine, began out assessing the influence that detectable antibodies can have on the incidence of COVID-19, particularly in healthcare staff, and within the final 12 months has widened its remit to analyse the impacts of vaccination on immunity inside this group.

The examine, the biggest of its sort worldwide, has since June 2020 seen a cohort of over 44,000 Nationwide Well being Service healthcare staff take part throughout 135 hospitals UK-wide. These contributors bear common PCR testing and antibody testing, and the ensuing information provides us unparalleled perception into antibodies and due to this fact COVID-19 reinfection extra usually.

The examine has had evaluation revealed in landmark publications together with The Lancet and the New England Journal of Drugs. It’s persevering with to work with healthcare staff and NHS trusts within the subsequent 12 months and can retain capability to watch immunity ranges in opposition to Omicron and variants past that.

The SIREN examine has helped NHS trusts throughout the nation to supply analysis they wouldn’t normally have the capability to supply and can proceed to work with an engaged cohort to offer extra solutions to our questions on immunological developments.


Working in parallel to SIREN, the VIVALDI examine has been amassing comparable information on care dwelling workers and residents in 330 properties in England since June 2020. This has consisted of standard PCR testing by means of the Nationwide Testing Programme and repeat assortment of blood samples. This has enabled analyses into (re)an infection ranges, variants of concern (VOCs) length of the immune response from each vaccination and pure an infection, and vaccine effectiveness.

Linkage to different datasets, corresponding to hospital admissions and mortality information, has offered additional perception into COVID-19 associated hospitalisations and deaths, and the protecting impact of vaccination in opposition to these outcomes.

This 12 months, VIVALDI will preserve scaled-down COVID-19 work in care properties to be able to reply ongoing analysis questions, corresponding to across the requirement for additional booster vaccinations.

Alongside different instruments at UKHSA’s disposal, corresponding to continued genomic sequencing capability, the analysis and evaluation carried out in these research will proceed to facilitate understanding because the virus develops and be certain that public well being recommendation retains consistent with the science.