The European health agencies have said there's ‘no clear evidence’ on second boosters for under 60s.
People aged over 60, and those with an underlying condition, look set to be offered a second Covid-19 booster vaccine.
The European Centre for Disease Prevention and Control (ECDC) and the European Medicines Agency (EMA) are recommending that second booster doses of mRNA Covid-19 vaccines be considered for people between 60 and 79 years old and people with medical conditions putting them at high risk of severe disease.
These could be administered at least four months after the previous one, with a focus on people who have received a previous booster more than 6 months ago.
However, at the moment, there is no clear evidence to support giving a second booster dose to people below 60 years of age who are not at higher risk of severe disease.
There's also no clear evidence to support giving early second boosters to healthcare workers or those working in long-term care homes unless they are at high risk.