Sumary of Covid: Do vaccines wear off and why do we need booster jabs?:
- The Covid-19 booster jab programme has been broadened to include healthy people over the age of 40 after health officials warned of a “bumpy few months ahead”.
- Previously, booster jabs were offered to people over the age of 50, as well as health and social care workers and vulnerable people six months after they received their second dose of a Covid vaccine.
- Here’s everything you need to know about whether vaccine efficacy wanes and why we need booster jabs:Does the Covid vaccine wear off?
- According to the Joint Committee on Vaccination and Immunisation (JCVI), recent research has shown a slight fall in the levels of protection against severe Covid-19 in people who had their first doses a long time ago.
- However, a yet-to-be-peer-reviewed study found that the AstraZeneca vaccine kept falling in efficacy, with protection against severe disease dipping to 60 per cent by 20 weeks.
- Professor Wei Shen Lim, chair of Covid-19 immunisation for the JCVI, said: “The booster dose markedly strengthens existing protection and will extend the duration of that protection against serious disease.