Letters: The limitations of a Covid vaccine
Still distant Sir: In James Forsyth’s analysis (‘Boris’s booster shot’, 14 November) he infers that a vaccine, if provided to the majority of the UK population, would deliver herd immunity from Covid-19, noting that ‘it seems increasingly probable that by the second half of next year, we will be emerging from this Covid nightmare’. I pray that he is right, though fear he may not be. In a recent Lancet editorial the view expressed was the exact opposite, as it notes that any vaccines are ‘unlikely’ to prevent transmission, though will reduce the severity of symptoms and likelihood of death.