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Pfizer Vaccine | UK study: less antibody response to two variant viruses

2021-06-05T16:34:52.730Z


Research conducted by British researchers found that the group most vulnerable to the new coronavirus pneumonia (COVID-19) may need to receive a booster shot of Pfizer vaccine this year. The new crown vaccine commonly known as "Pfizer Vaccine", Yumei


Instant International

Written by: Xu Yi'an

2021-06-05 14:42

Last update date: 2021-06-05 14:48

Research conducted by British researchers found that the group most vulnerable to the new coronavirus pneumonia (COVID-19) may need to receive a booster shot of Pfizer vaccine this year.

The new crown vaccine, commonly known as "Pfizer Vaccine", was jointly developed by the US pharmaceutical company Prizer and the German biotech company (BioNTech).

The research report was published in the authoritative medical journal The Lancet on June 3.

The article stated that about 79% of people developed an antibody response to the original virus strain after receiving the first dose of the vaccine.

▼If you want to know the lives of people in other countries during the epidemic, please click to enlarge and watch:

According to the article, after receiving the first dose of Pfizer vaccine, 32% of people had antibody reactions to the Delta mutant virus strain.

In addition, only 25% of people have an antibody response to the Beta virus strain originating from South Africa.

Those who received 2 doses of the vaccine had an average of only less than one-fifth of the neutralizing antibody level of the original virus strain against the Delta mutant virus strain.

The Delta mutant virus strain was first discovered in India in October 2020 and has now spread to 45 countries.

The results of the study also pointed out that the elderly are the most susceptible, and their antibody levels will decline over time.

The research was conducted by the Francis Crick Institute in the United Kingdom, the National Institute for Health Research (NIHR) in the United Kingdom, and the UCLH Biomedical Research Centre in the United Kingdom.

UCLH in full is the University College London Hospitals (University College London Hospitals).

The antibodies analyzed came from the blood of 250 healthy people, all of whom had received 1 or 2 doses of the vaccine.

For those who received 2 doses, the interval between the two doses was 3 months.

The virus strains currently circulating in many places around the world include the British virus strain (Alpha, B.1.1.7), the South African virus strain (Beta, B.1.351), and the Indian virus strain (Delta, B.1.617.2).

The risk levels of two other mutant virus strains of the same lineage as Delta have been reduced.

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The World Health Organization (WHO) decided on May 31 to use the Greek alphabet to be highly concerned and "variants of concern" (VOC), so as not to use all the countries where the virus was first found to call it, causing stigmatization .

Variant virus new crown pneumonia new crown vaccine

Source: hk1

All news articles on 2021-06-05

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