The Efficacy of Pfizer’s Vaccine for COVID Decreases Under 50 Percent After Half a Year

The Efficacy of Pfizer’s Vaccine for COVID Decreases Under 50 Percent After Half a Year
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Medical researchers had been adding a lot of faith in the Pfizer vaccine for COVID, but you know how things go in life – there’s no such thing as perfection. The coronavirus vaccines had been known from the start that they don’t grant one hundred percent immunity.

But the efficacy of Pfizer’s vaccine for COVID falls below 50 percent after roughly six months pass from receiving the second dose, as a new study published in The Lancet reveals.

Only 47% effective at six months after full vaccination

While the efficacy decreased to 47% after the full vaccination, it was at 88% during the first month. Also, the vaccine has proven to be very effective against the Delta variant that causes a lot more infections than other strains.

The researchers wrote, as quoted by The Hill:

Our results provide support for high effectiveness of [Pfizer-BioNTech COVID-19 vaccine] against hospital admissions up until around 6 months after being fully vaccinated, even in the face of widespread dissemination of the delta variant,

Reduction in vaccine effectiveness against SARS-CoV-2 infections over time is probably primarily due to waning immunity with time rather than the delta variant escaping vaccine protection.

Pfizer’s vaccine is one of the most used jabs for COVID immunization. In a post updated on September 28, the Centers for Disease Control and Prevention (CDC) says that the Pfizer vaccine was 95% effective when it comes to preventing infections confirmed in the lab for those who got two doses and weren’t previously infected.

How much do you trust the Pfizer vaccine for COVID? Would you consider getting a vaccine from another manufacturer? Do you want to avoid vaccination completely? Feel free and tell us what you think in the comment section, along with the motives behind your statements.


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Asheley Rice

I am a pop culture and social media expert. Aside from writing about the latest news health, I also enjoy pop culture and Yoga. I have BA in American Cultural Studies and currently enrolled in a Mass-Media MA program. I like to spend my spring breaks volunteering overseas.

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