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Genes get passed down from parents, determining traits such as eye color and height as well as risk for certain diseases.
“Midlife women often juggle caregiving, careers, and hormonal shifts that can strain the immune system,” Boden-Albala says.
All these variants have the R346T mutation in the spike protein. BQ.1.1 and XBB.1 have rapidly increased in frequency and have replaced BA.5 as dominant variants worldwide.
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The variants causing infections in China were the same Omicron sub-variants - BA.5.2 and BF.7 - seen elsewhere in the world, he said by email.