COVID-19 vaccine boosters may help protect against future animal coronaviruses

Craig Brierley In a related study, the team has shown that an individual’s first exposure to SARS-CoV-2 ‘locks in’ their immune response, impeding their ability to respond to future variants, even when vaccinated. When an individual is infected with a virus, the immune system produces antibodies that will recognise the virus if it re-enters the body and prevent infection taking hold again. Vaccination works on the same principle.