A new study shows mutations that tightened the core of the SARS-CoV-2 spike protein in new variants may have increased the virus’s fitness. Researchers detected a click-like sound, similar to the popping of popcorn, emitted at a volume that mimics human speech, but at high frequencies outside the hearing range of the human ear. The variants generate malformed proteins that alter the stability of the membrane attack complex (MAC), which may drive a chronic inflammatory response in the retina. It sounds like something from science fiction: Don a specialized, electronic headband and control a robot using your mind. Last spring, just as the COVID-19 pandemic began to wane to an endemic level, U.S. states and other countries were hit with yet another mysterious virus. This virus, however, was killing young children rather than presenting asymptomatically as SARS-CoV-2 did. Endeavour™ ductless fume hoods can be placed virtually anywhere, without the need to connect to |
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