Prof Daniel Altmann, Professor of Immunology, Department of Immunology and Inflammation, Imperial College London, said:
“This new study offers a clear message about omicron susceptibility, similar to Delta but more so: those who are unvaccinated, or even 2-dose vaccinated, are likely to be highly vulnerable to infection. However, those who’ve seen spike three times, either by boosting or by infection plus two doses, appear generally in the safety zone, even with a 41-fold drop. So, an even stronger argument for getting boosters as widely and rapidly as possible.”