The mutant strain "Yota" that first appeared in New York has a higher mortality rate

The mutant strain "Yota" that first appeared in New York has a higher mortality rate

An average increase of 60% compared to the original strain

Science and Technology Daily, Beijing, August 12 (Reporter Liu Xia) Scientists from the New York City Department of Health and Mental Health and Columbia University School of Public Health recently published an article on the biomedical preprint website saying that it is similar to the previous variant strain of the new coronavirus.

The "Yota" mutant strain (B.

Studies have shown that this mutant strain is moderately resistant to therapeutic monoclonal antibodies and vaccine/infection-inducing antibodies

In the latest study, scientists used 9 epidemiological databases to establish a comprehensive model to evaluate the infection rate, immune escape ability, and infection mortality rate of the strain from November 2020 to April 2021

The results of the study show that compared with the previously circulating new coronavirus mutant strains, the infection rate of "Yota" has increased by 15%-25%, and there is still no more than 10% immune escape in the infected population

In addition, compared with the previous COVID-19 mutant strain, the mortality rate after infection with the "Yota" mutant strain has increased by an average of 60%, which is equivalent to the estimated value of the alpha mutant strain

The researchers said that although this study has not been peer-reviewed, it emphasizes the importance of monitoring the epidemiological characteristics of mutant strains of the new coronavirus to better respond to the new coronavirus epidemic