Pfizer Covid jab ‘effective at preventing hospital admission for at least six months’

Effectiveness against infection fell over the study period, dropping from 88% within one month after receiving two vaccine doses, to 47% after six months.

‘Pfizer jab effective at preventing hospital admission for at least six months’. Picture: Yui Mok/PA

The Pfizer Covid vaccine is highly effective at preventing hospital admission even with the Delta variant, new research shows – though its effectiveness against infection almost halves after six months.

Two doses of the jab are 90% effective against Covid-19 hospital admission for all variants for at least six months, according to the study.