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On Thursday, Pfizer and Biontech said that the ongoing clinical trial of the third phase of the Corona virus vaccine produced by the two companies confirmed that the vaccine will continue to be effective for at least six months, after the second dose.
According to “CNN”, the question about the efficacy of the vaccine cannot be answered except after sufficient time, and while 6 months of efficacy for the vaccine are expected, but it is a promising period for the long-term efficacy of the vaccine.
Both companies said the vaccine was still over 91% effective against the virus, without showing symptoms, for at least 6 months.
While the new 91.3% efficacy rate is lower than the 95% reported in a trial of 44,000 in November, a number of mutated strains are circulating from Corona virus All over the world since.
The two companies also said the vaccine is “fully effective” against the new strain of Corona, which is prevalent in South Africa, and that researchers fear it has grown outside the scope of protection of current vaccines. .
Ujur Shaheen, CEO of Biontech, said the data from the trial “provides the first clinical results that prove that a vaccine can effectively protect against mutated strains currently in circulation, which is a critical factor in achieving Collective immunity And eradicate this pandemic. “
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