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Single Pfizer jab still highly protective after 3 weeks

 

A new study has found that a single dose of Pfizer/BioNTech vaccine provided a very high level of protection from Covid 19 after just 21 days, without the need for a second Top Up vaccination.
 
Experts at the University of East Anglia analysed data from Israel, where the vaccine has already been rolled out and found that the Pfizer jab became 90% effective after 3 weeks thus supporting UK plans to delay the timing of a second injection.
 
While it is not yet known how long immunity lasts beyond 21 days without a second dose, researchers believe it is unlikely to decline during the following 9 weeks.
 
Scientists warned people's risk of infection doubled in the first 8 days after the Pfizer vaccine jab citing people becoming less cautious as a possible cause.
 


 
 

 

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