COVID-19: the way forward for UKHSA surveillance


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 methods which have infinitely improved our understanding of COVID-19.

These methods assist us monitor prevalence of the virus throughout the UK, detect new variants and in flip analyse each their transmissibility and severity. Taken collectively, these research permit us to know the general affect 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 potential to make well timed public well being interventions could be severely hampered.

We have now 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 potential to make folks critically unwell. Over 50 million folks have now had no less than one jab, and almost 40 million have had three. Spring boosters at the moment are being given to probably the most weak.

This, nevertheless, doesn’t imply the pandemic is over. COVID-19 should nonetheless be handled as a menace to public well being, which is why UKHSA will proceed to observe 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 diminished slightly, with a median of 9000 exams accomplished daily. Fashions will proceed to regulate based on the traits of the pattern, to make sure estimates proceed to symbolize the inhabitants.

Crucially, although, CIS won’t scale back its reporting. This implies we’ll 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. Individuals will have the ability to publish their samples and fill in a digital questionnaire, quite than having face-to-face appointments at house, whereas a telephone service can be accessible to help contributors.

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

This is the reason each the SIREN and Vivaldi research will proceed to function within the subsequent 12 months.


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

The research, the most important of its sort worldwide, has since June 2020 seen a cohort of over 44,000 Nationwide Well being Service healthcare employees take part throughout 135 hospitals UK-wide. These contributors endure common PCR testing and antibody testing, and the ensuing information provides us unparalleled perception into antibodies and subsequently COVID-19 reinfection extra typically.

The research 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 employees and NHS trusts within the subsequent 12 months and can retain capability to observe immunity ranges towards Omicron and variants past that.

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


Operating in parallel to SIREN, the VIVALDI research has been amassing related information on care house employees and residents in 330 houses in England since June 2020. This has consisted of normal 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, resembling hospital admissions and mortality information, has offered additional perception into COVID-19 associated hospitalisations and deaths, and the protecting impact of vaccination towards these outcomes.

This 12 months, VIVALDI will keep scaled-down COVID-19 work in care houses with the intention to reply ongoing analysis questions, resembling across the requirement for additional booster vaccinations.

Alongside different instruments at UKHSA’s disposal, resembling 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 in line with the science.



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