FOI Ref: FOI/2021/3216
You asked
Please supply the following information:
How many cases have there been of a non-vaccinated person who has been infected with SARS-CoV-2 and built up a natural immunity gone on to become reinfected with SARS-CoV-2 & transmitted SARS-CoV-2 to another person who is vaccinated or not?
We said
Thank you for your request.
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.
We do not hold analysis on cases where a non-vaccinated person who has been infected with SARS-CoV-2 and built up a natural immunity gone on to become reinfected with SARS-CoV-2 and transmitted SARS-CoV-2 to another person who is vaccinated or not. Under the Freedom of Information act, public bodies are not obligated to produce bespoke analysis to respond to requests. We would therefore consider this to be information not held.
However, you may be interested in our technical article which assesses the impact of vaccination on the likelihood of testing positive. You may also be interested in exploratory analysis undertaken by our academic partners at the universities of Manchester and Oxford using Covid Infection survey data; this analysis looks at Inferring Risks of Coronavirus Transmission from Community Household Data.
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.