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With the arrival of the cold and more people resuming activities indoors, there has been a decrease in cases of covid-19 in United States.
At least half a dozen versions of the virus have been reported that are vying to become the next dominant strain in America, but they all come from the same family tree.
“They are all descendants of omicron”, Albert Ko, a physician and epidemiologist at the Yale School of Public Health, told the NY Times.
Ko also pointed out that these subvariants have slightly different mutations, none of these could be generating significant waves yet. What are the subvariants that are circulating in the US at the moment?
The Centers for Disease Control and Prevention (CDC) report that the subvariant BA.5 , which catapulted another wave of covid- during the summer, continues to generate at least half of infections across the nation. Although two other subvariants are being alerted: BQ.1 and BQ.1.1.
There are also variants BF.7, BA.5.2.6 AND BA.2.19, which are registered throughout the United States.
What is the ‘nightmare variant’?
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A XBB variant has made headlines for increasing cases of covid-19 in Singapore. Also, it is called in some reports as the ‘nightmare variant’, despite the fact that its number of cases and hospital admissions related to it had already decreased significantly for the 75 October.
When do you have to worry about these new variants?
“We have faced this before, with the flu, for example (…) Viruses and pathogens constantly try to adapt and escape the immune pressure that we propose”, added Ko.
The new subvariants are more effective to evade the system immune , therefore healthy adults have the possibility of becoming infected despite being vaccinated or having previously suffered from an infection by a different variant.
Although infectious disease physician and immunology researcher at the David Geffen School of Medicine at the University of California, Los Angeles, Otto Yang, argued that “people who are up-to-date with their vaccinations and who receive early treatment with Paxlovid or with remdesivir they will be fine for the most part.”
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