
As the pandemic continues, many countries are rolling out COVID booster vaccines. In the UK, the autumn booster campaign is offering a fourth dose to those at higher risk from a COVID infection, including people with certain underlying medical conditions, and those aged over 50.
The autumn booster shots are bivalent vaccines, meaning they target the original strain of SARS-CoV-2 (the virus that causes COVID-19) alongside the omicron variant.