C
Chris Smith
Guest
- A study from Israel indicates that people who received the Pfizer/BioNTech coronavirus vaccine develop an immune response significantly stronger than COVID-19 survivors.
- These researchers think this sort of immunity might completely prevent COVID-19 transmission, although more data is needed to prove that’s the case.
- The goal of current COVID-19 vaccines is to prevent severe illness and death. Inoculated people might still catch the disease and they may still be contagious.
As the first coronavirus vaccine clinical trials were nearing the end of the final stage of testing, it became increasingly clear that the object of these first-generation vaccine candidates wasn’t to prevent COVID-19 transmission entirely. That would be a welcome side-effect. Instead, researchers were hoping the vaccines would prevent severe COVID-19 and deaths, and that’s exactly what Phase 3 trials showed. The Pfizer/BioNTech, Moderna, and AstraZeneca/Oxford vaccines can all prevent severe COVID-19 with varying degrees of efficacy. But the studies were not able to demonstrate that the COVID-19 immunity acquired after the two-dose regimen might also prevent the spread of the illness.
People immunized against COVID-19 will have a high chance of avoiding a severe case of the illness after an actual infection, but infection with the novel coronavirus would be possible even after a person acquires immunity. The virus might infect cells in the nose and throat and multiply to a level where transmission is still possible. The vaccine-triggered immune response would block the virus from damaging the lungs, preventing complications in this manner.
Now, a brand new study from the country with the best vaccination program so far indicates that the immunity developed from the Pfizer/BioNTech vaccine is so strong that it might prevent COVID-19 transmission.
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Study says Pfizer vaccine immunity is so strong, it might prevent COVID-19 transmission originally appeared on BGR.com on Tue, 19 Jan 2021 at 15:25:10 EDT. Please see our terms for use of feeds.
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