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“Double mutation” COVID-19 strain appeared in California



A new “double mutant” variant of the coronavirus was discovered in California because scientists feared that the strain might be more infectious.

Stanford University health care spokesperson Lisa Kim said in the San Francisco Chronicle on Sunday that the Stanford University Clinical Virology Laboratory found and confirmed a case of this variant in the Bay Area, which first appeared in India .

Stanford University is also screening seven other presumptive cases.

According to news media reports, this newly emerged strain is called a “double mutant” because it carries two mutations in the virus that can help it lock itself onto the cell.

Indian infectious disease expert Dr. Peter Chin-Hong found a “double mutant”

; variant in a case sequenced in the hard-hit state of Maharashtra, India. The disease has surged by 50% in the past week recently. %the above. The University of California, San Francisco pointed out.

The doctor intubated a COVID-19 patient.
A new COVID-19 strain was discovered in California.
Reuters

It is not clear whether this new COVID-19 variant has greater infectivity or resistance to the coronavirus vaccine, but Chin-Hong said that it is “justified” that it has greater transmission.

He told the San Francisco Chronicle: “From a biological point of view, because these two mutations act on the receptor binding domain of the virus, they have a higher spread, but so far, there has been no official spread. the study.”

Chin-Hong added that the mutation of one variant was similar to one of the first coronavirus mutations found in Brazil and South Africa, and the other mutation was also found in the first mutation detected in California.

Patients are waiting in line for the COVID-19 vaccine.
This variant was first identified in India and carries two mutations in the virus that help it lock onto the cell.
Environmental Protection Agency

The scientist said: “This Indian variant contains two mutations in the same virus for the first time, previously seen in separate variants.”

“Since we know that the affected domain is the part that the virus uses to enter the human body, and the California variant is already more resistant to certain vaccine antibodies, it seems reasonable to think that the Indian variant might do the same.” he Explained.

A man received the COVID-19 vaccination.
It is not yet known whether this new COVID-19 variant is resistant to the coronavirus vaccine.
Getty Images

Several other COVID-19 variants have been found in the United States-including the highly infectious British variant called B.1.1.7, the South African variant called B.1.351, and the Brazilian variant called P .1.

According to the latest data from the Centers for Disease Control and Prevention in the United States, the British variant accounted for 12,505 cases in the United States, while the South African and Brazilian variants accounted for 323 and 224 cases in the United States, respectively.


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