Even as the US grapples with its most recent wave of Covid 19, new research suggests that variants on the horizon may keep case levels high, reported
Even as the US grapples with its most recent wave of Covid 19, new research suggests that variants on the horizon may keep case levels high, reported CNN. The next influx of infections will probably come from the newer Omicron subvariants BA.4 and BA.5, two closely related viruses that were first characterized in South Africa and that landed in the United States around late March, according to the gene sequence sharing site GISAID. These variants are gaining ground against BA.2, particularly in the central part of the country. Recent research suggests that they escape immunity created by vaccines and past infections. According to the most recent updates from the US Centers for Disease Control and Prevention and the genomics company Helix, BA.4 and BA.5 together accounted for an estimated 6% to 7% of new infections in the US in late May, reported CNN.
“It’s a serious threat,” Dr. David Ho, a professor of microbiology and immunology at Columbia University in New York City, wrote in an email. “Only a month ago, it was .02 percent.” BA.4 has been detected in at least 30 countries, and BA.5 has been sampled in 32 countries, according to the website Outbreak.info, which is maintained by the Scripps Research Institute. Ho and his co-authors recently tested antibodies from the blood of vaccinated and boosted people, as well as the antibodies of people who’d recovered from breakthrough Covid 19 infections, against engineered BA.4 and BA.5 viruses in the lab. In each case, they found a drop in potency against BA.4 and BA.5. They found that that BA.4 and BA.5 viruses are more than four times as likely to escape antibodies in people who’ve been vaccinated and boosted compared with BA.2 viruses, as reported by CNN.
Watch against contagion
In the last 24 hours 59 new cases of contagion and 0 deaths caused by Covid 19 were reported by State and Health Authorities. Contagion is being watched in Guanajuato and cases of contagion reported are below 60 in the last 24 hours, while there were 0 deaths reported. Authorities maintain the color of activities in the GREEN easing restrictions on activities, both leisure and work.
State Health Authorities insist that Guanajuato should maintain health protection.
For more information call:
800 004 4800 and
800 627 2583
Or visit:
- https://coronavirus.guanajuato.gob.mx/
- reactivemosgto.guanajuato.gob.mx
