Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, what advice he has received from the Joint Committee on Vaccination and Immunisation on increasing the time period between the administration of the first and second dose of covid-19 vaccine for NHS and social care staff.

The Joint Committee on Vaccinations and Immunisations (JCVI) advises the Government on which vaccines the United Kingdom should use and provide advice on prioritisation. After studying all the available data, the JCVI concluded that the first dose of both vaccines currently deployed provides substantial protection within two to three weeks of vaccination from severe COVID-19 disease.

The second vaccine dose is important to sustain the protection and extend its duration. However, in the short term, the additional impact of the second dose is likely to be modest and most of the initial protection from clinical disease is after the first dose of vaccine. The four UK Chief Medical Officers agreed with the JCVI that at this stage of the pandemic prioritising the first doses of vaccine for as many people as possible on the priority list would protect the greatest number of at-risk people in the shortest possible time.

Operationally this means that second doses of both vaccines will be administered towards the end of the recommended vaccine dosing schedule of 12 weeks. This will maximise the number of people getting the vaccine and receiving protection within the next 12 weeks.
The JCVI’s statement on changing the dose interval is available at the following link:

www.gov.uk/government/publications/prioritising-the-first-covid-19-vaccine-dose-jcvi-statement/optimising-the-covid-19-vaccination-programme-for-maximum-short-term-impact