Pfizer Jab Is 90% Effective At Preventing Hospitalisation

Coronavirus: Vaccine Success

- Hanna Geissler

TWO doses of the Pfizer Covid-19 vaccine provide strong protection against severe illness for at least six months despite immunity waning, a study suggests.

Research found the jabs’ effectiveness at preventing infection fell from 88 per cent after one month, following a second jab, to 47 per cent after six months.

But they remained 90 per cent effective at preventing hospitalization with all variants.

Study leader Dr. Sara Tartof said: “Our study confirms that vaccines are a critical tool for controlling the pandemic and remain highly effective in preventing severe disease and hospitalization, including from Delta and other variants of concern.”

The research, carried out by Pfizer Vaccines and US healthcare firm Kaiser Permanente, looked at data from more than 3.4 million people, including one million who had both Pfizer/BioNTech doses.

Two doses were found to be 73 per cent effective at stopping people catching Covid across the whole study period.

Protection