Los Angeles County is under the control of an outbreak of the coronavirus caused by Omicron subvariant BA.5, but another strain of concern in India has also been found domestically.

Named BA.2.75, it is a sub variant It is being monitored. World Health Organization. As of Thursday, there were six cases in the U.S., including two in California, including one in LA County, said Barbara Ferrer, the county’s director of public health.

“It appears to have additional mutations that facilitate proliferation and rescue immunity,” she said during the presentation. And it is spreading rapidly all over India.

Scientists believe that the occurrence of BA.2.75 can prolong or worsen the hypertension that is being fueled by BA.5. Another very contagious A member of the Omicron family.

“When there is a new strain identified, or in this case a lineage under surveillance, we need to proceed with caution as it will take time to better understand the risks posed by this newly mutated virus,” Ferrer said. He said.

In the week ending Saturday, BA.5 is estimated to have accounted for 65 percent of new cases nationwide. according to US Centers for Disease Control and Prevention.

“I hope BA.5 sticks, because people will get some relief and then the curves will go down,” said Dr. Peter Chin-Hong, an infectious disease expert at UC San Francisco. But if BA.2.75 [spreads]”This adds another variable to the mix,” he said, raising the possibility that “you’re going to see a whole bunch of people passing different things back and forth, and they’re going to find something they didn’t get before.”

An alarming number of sub-variants have appeared since Omicron. He landed at first California beaches around Thanksgiving. Three different ones since April Sub variables – BA.2, BA.2.12.1 and now BA.5 – is considered to be the main tension at the national level.

This allowed people to become infected again in a relatively short period of time. Since the outbreak began, some people have reported getting it two, three, or even four times.

“It will take time for a newly mutated virus to escape immune defenses to easily infect others and develop serious disease,” Ferrer said. “Until we understand how the virus interacts with these new variables, it is a very good idea to use caution.”

Previously, scientists suspected that people infected with the corona virus have a particularly strong immune system for several months to prevent re-infection. But now some people are reporting re-infection within a few weeks.

One of them is Xavier Becerra. Secretary of the US Department of Health and Human Services Tested positive in Sacramento In mid-June – 3½ weeks after a positive test during a visit Berlin.

Re-infection with the coronavirus increases long-term health consequences over time.

Even a single infection with the coronavirus is associated with a long-term risk of death and other symptoms.

A re-infection affecting things such as the cardiovascular system, gastrointestinal tract, nervous and renal systems was associated with additional mortality, hospitalization and negative health outcomes; And according to a preliminary publication, it increases the risk of diabetes, fatigue and mental health disorders Research Written by scientists at Washington University School of Medicine and the Veterans Affairs St. Louis Health Care System.

The increased risk of reinfection was observed in both unvaccinated and vaccinated individuals, and persisted not only during the acute phase of the disease but also in the months after resolution of initial infection.

Most of the risks “were still evident at six months after reinfection,” the report said, which studied the medical records of veterans, including nearly 39,000 who had two or more infections, 257,000 who had one infection, and more than 5 million people. Infection record.

“Assessment of the cumulative risks of recurrent infection shows that exposure and burden increase exponentially with the number of infections,” the report said. “The pool of findings shows that reinfection in the acute and post-acute phase of reinfection increases the non-trivial risks of all-cause mortality, hospitalization, and adverse health outcomes.

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