FOI Ref:FOI/2021/3195
You asked
Please supply the following information:
- A breakdown of data within the UK for infection rate within the vaccinated vs vaccinated in each age group and by country.
- A breakdown for hospitalisations for vaccinated vs unvaccinated and the subsets age/pre-existing health conditions
- A breakdown or estimate of the number of breakthrough infections occurring in the vaccinated
- A breakdown of the average BMI of COVID-19 admissions
We said
Thank you for your request.
The COVID-19 Infection Survey is a household survey that estimates the number of people testing positive for infection and for antibodies in the UK. Our statistics refer to the number of current COVID-19 infections within the population living in private residential households. We exclude those in hospitals, care homes and/or other communal establishments. In communal establishments, rates of COVID-19 infection are likely to be different.
The information you have requested regarding infections by vaccination status and by age is available from the UKHSA (UK Health Security Agency, previously Public Health England) COVID-19 surveillance reports. The relevant figure is on page 30 (2 December 2021, week 48). Please pay attention to the note accompanying the figure. In the context of very high vaccine coverage in the population, even with a highly effective vaccine, it is expected that a large proportion of cases, hospitalisations and deaths would occur in vaccinated individuals, simply because a larger proportion of the population are vaccinated than unvaccinated and no vaccine is 100% effective. For more information, you can contact UKHSA via email at informationrights@ukhsa.gov.uk.
You may also be interested in the Office for National Statistics COVID-19 infection survey technical article on positivity after vaccination and accompanying dataset, which includes the number of people who test positive after one and two dose vaccination from 1 December 2020 to 31 May 2021. Alongside this, you may also be interested in our technical article on the impact of vaccination on testing positive and accompanying dataset, which includes the risk ratios of testing positive by vaccine exposure from 1 December 2020 to 14 August 2021.
We do not hold data on BMI of hospital admissions. Your query may be better placed with UKHSA, who are responsible for the government testing programme and official UK data on hospital admissions. They can be contacted via email at informationrights@ukhsa.gov.uk.
Further information and an overview of data about the coronavirus (COVID-19) pandemic from the Office for National Statistic (ONS) and other sources can be found in our Coronavirus (COVID-19) latest insights tool.