Vaccines: full coverage brakes Delta variant mutations

2021-08-18T13:10:03.242Z

The global coverage of the population with the Covid-19 vaccine is decisive to prevent the Delta variant, dominant in Italy as in most of the world, from accumulating mutations that make it more dangerous. (HANDLE)

August 18, 14:56

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Vaccines: full coverage brakes Delta variant mutations

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(ANSA) - ROME, AUGUST 18 - The global coverage of the population with the Covid-19 vaccine is decisive to prevent the Delta variant, dominant in Italy as in most of the world, from accumulating mutations that make it more dangerous. This is indicated by the first data on this topic, relating to 16 countries including Italy and collected by Ting-Yu Yeh and GregoryContreras, of the University of Maryland. The data is available online on the medRxiv platform, which welcomes unexpected articles for review by the scientific community.

"We present the first evidence that vaccination coverage rate is inversely related to the mutation frequency of the Delta variant of the SarsCoV2 virus in 16 countries," the researchers write, and the data "strongly indicate that full vaccination against Covid-19 is crucial for suppressing mutations. emerging ". In light of these data, they note, global vaccination, i.e. of the world population, is decisive to prevent the transmission of the virus, and it is necessary to continue to adopt mitigation strategies and genomic surveillance. For the virologist Francesco Broccolo, of the University of Milan Bicocca, the results of the research are important, first of all because "in the countries where it hunts more, the chances of the virus reaching more dangerous mutations are reduced". It is also true,added the expert, that "the vaccination strategy alone is not enough: it is also necessary to continue to use preventive measures, such as wearing a mask and adopting distance. They are all strong forms of virus reduction".

This is true, continues Broccolo, especially considering that the most recent data on the effectiveness of the anti Covid-19 vaccines, published in the New England Journal of Medicine, indicate coverage of 88%.

Looking only at the Italian data, the virologist continued, "the data relating to molecular swabs indicate that since the beginning of the summer the positive index has increased by 5-6 times, passing from 1.2% on June 16 to the current fluctuations. between 6% and 9% ".

(HANDLE).

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Vaccines: full coverage brakes Delta variant mutations

Vaccines: full coverage brakes Delta variant mutations

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