A new “double mutant” coronavirus strain was discovered in San Francisco, which is believed to be responsible for the surge in cases in India, marking the first time this variant has been detected in the United States.
This strain is called a “double mutant” because it carries two mutations that help the virus lock in the cell, “San Francisco Chronicle” notes.
Like the strains from the United Kingdom and Brazil, this variant is believed to be more spread than the preexisting form of the virus.It is not clear whether the “double mutant”
Peter Chin-Hong, an infectious disease expert at the University of California, San Francisco, told the Chronicle: “This Indian variant contains two mutations in the same virus for the first time. It was previously seen on 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 has higher resistance to certain vaccine antibodies, there seems to be reason to think that the Indian variant might be,” Jin Zhenhong added.
Chin-Hong said that he is “optimistic” that the vaccine will be effective against “double mutant” strains because there are data showing that the vaccine is effective against similar strains first discovered in South Africa and California.
Health experts warn that the United States may enter the fourth round of coronavirus cases, driven by new, more infectious strains. However, other experts, such as the former Director of the Food and Drug Administration Scott Gottlieb (Scott Gottlieb), predict that existing immunity and increased vaccinations may prevent the “real fourth wave of US cases.” “.
According to the Centers for Disease Control and Prevention, California has administered nearly 20 million doses of coronavirus vaccine. The state plans to open vaccine eligibility to everyone over 16 years old on April 15. The United States recently set a new record of more than 4 million doses of coronavirus every day. As of Monday, 32% of the U.S. population has received at least one dose.