American scientists have reported that the strain of the SARS-CoV-2 coronavirus, first recorded in California last spring, maybe more dangerous and resistant to vaccines than the original strain. The concern of researchers and medical professionals has grown amid an increase in cases of infection in the state with this new variant, known as B. 1. 427/B.1.429. This is reported by The New York Times.
The experiments analyzed 2,172 samples of the virus isolated in California between September 2020 and January 2021. It turned out that in California, the number of cases of B. 1.427/B infection.1.429 doubles every 18 days. This variant is 40 times more effective at infecting human cells than earlier strains, and the viral load in the nose and throat of patients was twice as high as that of those infected with other variants.
According to the scientists, B. 1. 427/B.1.429 is just as worrisome as other new strains that have emerged in the UK, South Africa, and Brazil. The antibodies that appear in people who have been vaccinated or have had the classic SARS-CoV-2 coronavirus were less effective against the new strain. However, it seems to be inferior to the South African strain in its ability to resist the human immune system.
An analysis of 300 cases of infection showed that the California strain increases the likelihood of death from COVID-19, but this result is not statistically significant, since only 12 people died in the sample. Scientists also doubt that B. 1. 427/B.1.429 will be widely distributed, unlike the British B strain.1.1.7, which is rapidly displacing other coronavirus variants.