Covid vaccine: Why jabs should give us protection from serious illness for years, despite ‘waning immunity’
The i says how long immunity from Covid-19 lasts following a vaccine has been one of the main questions everyone wants answered, yet finding a definite answer is difficult.
The latest study to attempt to do so concluded that the protection provided by two doses of the Pfizer/BioNTech and the Oxford/AstraZeneca coronavirus vaccines starts to wane within six months.
Scientists behind the Zoe Covid Study app said that the Pfizer jab was 88 per cent effective at preventing Covid-19 infection a month after the second dose but after five to six months the protection decreased to 74 per cent. With the AstraZeneca vaccine, there was a protection against infection of 77 per cent one month after the second dose but after four to five months, protection decreased to 67 per cent.
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