Professor Ian Jones, a virologist at the University of Reading, said descriptions of Omicron being a 'natural vaccine' were right. The graph shows the countries who have given the highest total number of vaccine doses and boosters per 100 population. Dr Simon Clarke, a microbiologist at the University of Reading, admitted he 'can't see' governments pushign out Covid vaccines every three months for much longer. Vaccine makers have been quietly working on as polyvalent Covid jabs but they are all in early development and way off clinical trials. Hopes of Omicron ushering in the end of the pandemic stage of Covid were sparked by a South African study into Covid death rates in the nation's Omicron wave.