October 15, 2021

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How effective is the current COVID-19 vaccines against β variants?

How effective is the current COVID-19 vaccines against β variants?

The recent surge in β variants: How effective is the current COVID-19 vaccines against β variants?

 How effective is the current COVID-19 vaccines against β variants?  The beta variant of the coronavirus was first discovered in South Africa and is believed to be the main cause of the second wave of viruses in South Africa. However, this pressure is now starting to surge in France.

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The beta variant of the coronavirus was first discovered in South Africa and is believed to be the main cause of the second wave of viruses in South Africa. However, this pressure is now starting to surge in France.

What is a beta variant?

The beta variant, also known as B.1.351, has the same mutations as the strains first discovered in the UK and Brazil.

It is believed that this strain is not more deadly than any other mutation. Although it spreads much faster, there is no evidence that the South African variant will cause more serious diseases to most infected people! Is the vaccine effective against beta variants? Other studies have shown that the vaccine may still reduce severe cases and deaths of the B.1.351 strain.

Pfizer vaccine:

Early research results indicate that the antibodies produced by those using Pfizer vaccines are not very effective against the strain.

However, later studies on data from 800 people in South Africa showed that this vaccine is 100% effective in preventing symptomatic COVID-19.

Pfizer has announced that it is developing an enhanced vaccine specifically targeting new variants. Includes beta variants.

AstraZeneca vaccine:

Research on whether the AstraZeneca vaccine is effective for this strain is much smaller.

A small study of 2,000 people in South Africa showed that the AstraZeneca vaccine has the least protection against new strains.

In March, a research report showed that the efficacy of two doses of AstraZeneca vaccine against mild to moderate infections was only 10.4%.

The trial was conducted from June 24 to November 9, and the company said: AstraZeneca is discussing a future version of our COVID-19 vaccine with the British government to specifically address the variant problem.

We will share more details in due course. Any future version of the vaccine will need to be approved by the drug regulatory agency before it can be used.

Moderna vaccine:

The effectiveness of Moderna vaccine against beta strains still needs to be tested.

However, a study conducted in the United States found that this vaccine proved effective against beta variants of primates.

The researchers wrote: “These data highlight the importance of optimizing the main and enhancement protocols for neutralizing antibody responses, especially for B.1.351 and any other variants of interest that may be targeted for vaccine-induced reduction in neutralization.

(source:internet, reference only)


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