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Stealth
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‘Stealth Omicron’ spreads more than original strain: study
Credit: Pixabay/CC0 Public Domain A sub-variant of the highly contagious Omicron coronavirus strain is even more infectious than the original version, according to a Danish study published on Monday. Sub-variant BA.2—also called "stealth Omicron"—was detected earlier this year and has displaced the first Omicron variant, known as BA.1, as the dominant strain in Denmark. A…
Stealth Moves: COVID Virus Goes “Underground” To Spread From Cell to Cell
Viruses enter cells to make copies of themselves and cause infection. One secret to SARS-CoV-2’s success is hiding from the immune system by spreading between cells. This transmission electron micrograph shows COVID-causing virus particles that were isolated from a patient. Credit: National Institute of Allergy and Infectious Diseases, NIH Study sheds light on COVID virus…