https://www.westword.com/news/colorado-stealth-omicron-and-other-variants-rising-13820422/
Colorado Stealth Omicron and Other Variants Rising | Denver Westword
Sep 16, 2025 - New variants are being identified worldwide.
stealth omicronand othercoloradovariantsrising
https://www.tampabay28.com/news/coronavirus/lab-study-shows-stealth-omicron-subvariant-is-more-transmissible-as-cases-spread
Lab study shows new details about 'stealth omicron'
Feb 22, 2022 - New lab experiments from Japan show stealth omicron may be even more transmissible than original omicron and could also be resistant to some treatments, like...
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https://www.indiatimes.com/news/india/ba-2-stealth-variant-makes-up-80-of-kolkatas-omicron-infections-what-we-know/articleshow/127438643.html
BA.2 'Stealth' Variant Makes Up 80% Of Kolkata's Omicron Infections: What We Know
Nearly 80% of COVID samples sent for genome-sequencing by labs in Kolkata have the BA.2 sub-lineage of the Omicron variant, nicknamed the 'stealth version', as...
https://www.nhpr.org/2022-03-14/china-battles-multiple-covid-19-outbreaks-driven-by-stealth-omicron
China battles multiple COVID-19 outbreaks, driven by stealth omicron | New Hampshire Public Radio
Mar 14, 2022 - While the numbers are small relative to numbers reported in Europe or in the U.S., they are the highest since the first big outbreak of COVID-19 in the central...