Dr Laolu Fayanju, the regional director for Ohio-based Oak Street Health, issued a terrifying warning for those yet to receive their vaccines.
Speaking to Time Magazine, she compared catching Covid without adequate coverage to playing Russian roulette “with an automatic handgun”.
Dr Fivelman claimed if the UK ends up walking a similar path to South Africa, only vulnerable people would need another booster.
He said: “If this pattern is repeated in the UK, then, rather than a rolling programme of fourth, fifth and sixth jabs, and so on into infinity, we may be able to focus the UK’s fourth booster plans only on those more at risk.”
Beyond the next vaccination, Dr Fivelman said Omicron could end up the last “variant of concern”.
He said while other variants may come, the disease may be on track to becoming endemic.