Pfizer Vaccines Decrease Over Time
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In six months or earlier, the effectiveness of the vaccine will decrease from 96.2% to 84%. However, the third dose can increase it dramatically.
The effectiveness of Pfizer’s COVID vaccine declines from 96.2% to 84% four to six months after receiving the second dose. Pfizer CEO Albert Burlu informs about this with reference to the statement CNBC.
It is noted that the company has conducted a new study, which involved more than 44 thousand people from the United States and other countries. Its results showed that the effectiveness of the drug decreases by an average of 6% every two months.
“The good news is that we are very, very confident that the third dose, the booster, will boost the immune response to levels sufficient to protect against the Delta variant,” Burla said.
According to him, Pfizer plans to officially provide US regulators with data on the benefits of the third dose of their COVID vaccine by mid-August.
Earlier it was reported that studies have shown efficacy of Pfizer and AstraZeneca vaccines against the Delta strain.
Scientists compare the effectiveness of Pfizer and Sinovac vaccines
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