FOI Ref: FOI/2021/3307

You asked

Please supply the following information:

  1. The number of cases in double jabbed people testing positive

  2. The number of cases in people with boosters testing positive

  3. The number of deaths related to Covid only in unvaccinated people

  4. The number of deaths related to Covid only in vaccinated people (whether single, double or booster jabbed).

We said

Thank you for your request.

COVID-19 cases by vaccination status

The information you have requested regarding infections by vaccination status is available from the UKHSA (UK Health Security Agency, previously Public Health England) COVID-19 surveillance reports. The relevant figure is on page 35 (16 December 2021, week 50). Please pay attention to the note accompanying the figures. 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. Please also note that the figures are not currently available for booster vaccinations. For more information, you can contact UKHSA via email at informationrights@ukhsa.gov.uk.

Our 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.

You may be interested in the COVID-19 Infection Survey technical article on positivity after vaccination and accompanying dataset. This includes the number of people who tested positive in the survey 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.

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.  

COVID-19 deaths by vaccination status

We hold the following analysis Deaths involving COVID-19 by vaccination status, England - Office for National Statistics which includes COVID-19 deaths by vaccination status from 1 January 2021 to 31 October 2021. This publication includes weekly mortality rates in England by vaccination status.

The data are for England only, as vaccinations data for Wales is not yet available to be linked to the mortality dataset and the PHDA covers England only. Therefore, we consider data for Wales as information not held.

Notes:                                                                                                                                                                          

1. Age-standardised mortality rates per 100,000 person-years, standardised to the 2013 European Standard Population using five-year age groups from those aged 10 years and over. "Person-years" take into account both the number of people and the amount of time spent in each vaccination status. For more information, see our methodology article.                                                                                                                                                                    

2. Office for National Statistics (ONS) figures based on deaths that occurred between 1 January and 31 October 2021 and were registered by 10 November 2021. These figures represent death occurrences, there can be a delay between the date a death occurred and the date a death was registered. More information can be found in our impact of registration delays release.                                                                                                                                                                    

3. ASMRs are calculated using the Public Health Data Asset, a linked dataset of people resident in England, who could be linked to the 2011 Census and GP Patient Register. This dataset covers approximately 79% of the population in England aged 10+.                                                                                                                                                                              

4. Deaths were defined using the International Classification of Diseases, tenth revision (ICD-10). Deaths involving the coronavirus (COVID-19) are defined as those with an underlying cause, or any mention of, ICD-10 codes U07.1 (COVID-19 virus identified) or U07.2 (COVID-19, virus not identified). Please note, this differs from the definition used in the majority of mortality outputs.                                                                                                                                                                              

5. 95% confidence intervals are indicated by the shaded regions. Where the total number of deaths is less than 100, Dobson's method is used, otherwise the normal approximation is used. Non-overlapping confidence intervals denote a statistically significant difference in ASMR.                                                                                                                                                                              

6. Age is defined on the first day of the month.                                                                                                                                                                            

7. While differences in the ages of people in the vaccination status groups are accounted for, other differences, such as health, ethnicity or level of deprivation, may remain, which can affect the mortality rates.                                                                                                                                                                      

8. Totals may not exactly equal the sum of totals from breakdowns due to rounding.                                                        

For further information please contact Health.Data@ons.gov.uk.