Jenny Hall, part of PHE Team to show the first evidence that Covid vaccination reduces transmission

Dr Jenny Hall  – (Dept Reproductive Health and Associate Professor and Clinical Academic Consultant in Public Health Medicine) has been part of the Team at Public Health England to show the first evidence that vaccination with either the Prizer or Astra-Zeneca vaccines reduces transmission of Covid-19 by 40-50%.  See further details on this BBC news report.  

Jenny is working as a Senior Epidemiologist in the Epidemiology Cell as part of Public Health's England Coronavirus response. She is responsible for managing the team who produce the data for the weekly National Covid-19 Surveillance reports, as well as working on a number of other epidemiological investigations. One of these – HOSTED – the Household Transmission Evaluation Dataset has led to increased understanding of household transmission of SARS-CoV-2. First analyses have been published in the International Journal of Epidemiology and show that household transmission is not inevitable. A pre-print of new findings, widely covered in the media, has shown that vaccination with either the Pfizer or Astra-Zeneca vaccines reduces household transmission by 40-50%. This is the first evidence of the effect of the vaccines on transmission from people who become cases despite having been vaccinated.