Pfizer’s CEO Says that the Effectiveness of the COVID Vaccine Drops

Pfizer’s CEO Says that the Effectiveness of the COVID Vaccine Drops

Pfizer’s COVID vaccine has been widely applied to people. But you know what they say that there’s no such thing as perfection in this world. Mr. Albert Bourla, who is the CEO of Pfizer, brings a claim that will upset many people.
According to, Pfizer’s CEO says that the efficacy of the company’s COVID vaccine will decline steadily to roughly 84% at six months after a person gets the second dose.

Bourla’s comments were made during CNBC’s “The Exchange”. They’re based on the conclusions of a new study that has yet to be peer revived.

The peak was set at 96.2%

The same study concluded that Pfizer’s vaccine was most effective between one week and two months after a person receives the second dose. That maximum effectiveness was at 96.2%.

Source: Pixabay
Source: Pixabay

Bourla said, as quoted by

We have seen also data from Israel that there is a waning of immunity and that starts impacting what used to be what was 100% against hospitalization. Now, after the six month period, is becoming low 90s and mid-to-high 80s.

The good news is that we are very, very confident that a third dose, a booster, will take up the immune response to levels that will be enough to protect against the delta variant.

Bourla also said that Pfizer aims to formally submit data to US regulators regarding the benefits of a third dose of COVID vaccine by the middle of August.

According to the CDC, clinical trials based on people of at least 16 years old showed that the vaccine developed by Pfizer-BioNTech was 95 percent effective for those who received two doses and weren’t previously infected with COVID.

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Even since he was a child, Cristian was staring curiously at the stars, wondering about the Universe and our place in it. Today he's seeing his dream come true by writing about the latest news in astronomy. Cristian is also glad to be covering health and other science topics, having significant experience in writing about such fields.

One thought on “Pfizer’s CEO Says that the Effectiveness of the COVID Vaccine Drops

  1. patricia littlefair · Edit

    I would very much like for the population to get this third shot. These COVID variants aren’t anything to mess with and we need as much protection as we can get.


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