Pfizer believes a third dose of COVID-19 vaccine will be needed

Albert Bourla, CEO al Pfizer, suggested the need for a the third dose against coronavirus for vaccinated people. “It simply came to our notice then 6 and 12 months after the second. And from there, there will be a annual vaccination“But all this will have to be confirmed,” the director of the pharmaceutical company said in a discussion for the CVS pharmacy chain recorded in early April, but broadcast on Thursday. Bourla said the scenario may change depending on the drug’s ability to resist new variants. Scientists fear that the new mutations of coronavirus are resistant to immunizations.

vaccine pfizer has an efficiency of 92% to prevent more serious cases coronavirus infection, according to one of the largest studies to date: the Clalit Mutual Health Research Institute, the largest Israeli health care system. The company vaccinated half of its 1.2 million members and found the effectiveness of protection among 600,000 immunized compared to the other unvaccinated half of the control group.

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Pfizer announced that immunity had a window six months after the second dose injection. The third puncture should come after that semester. Modern, which uses a technology similar to that of the vaccine Pfizer-BioNTech, also has a high efficiency in the same period, according to the publication The New England Journal of Medicine.

David Kessler, the person in charge of managing the pandemic for the government of Joe Biden, also warned on Thursday that American should prepare for the possibility of the third dose. “At the moment we do not know everything (…). We study the duration of the response antibodies“The pediatrician said during a meeting with lawmakers. At the meeting, the official asked all Americans to continue vaccination. “Nothing should distract them from the fact that they need to be vaccinated and that we have sufficient doses“He said, referring to the suspension of injections with the antidote Johnson and Jonhson for their possible links to cases of thrombi.

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The United States is also monitoring infections in people who have completed both doses of the vaccine, depending on Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC). Of the 77 million immunized people in the United States, they have been infected 5,800, of which 396 had to be hospitalized and 74 diedWalensky reported in an appearance before a House subcommittee.

The Executive Director of Pfizer said that vaccination is an important tool to fight variants of COVID that turned out to be more contagious. The pharmaceutical company revealed in one of its studies that its drug is less potent against the mutation of the virus originating from South Africa, which already adds more than 300 cases in 25 states in the United States. The pharmaceutical company announced on February 26 that it will study the possibility of injecting one the third dose vaccinated people to try strengthens protection before these variants. Bourla then said that with this dose, the antibody response could be strengthened between 10 and 20 timesand pointed out that it could become as common as annual immunization against oppression.