Afaict, you've completely missed the question embedded in the comment. You then reacted to the "isolated" keyword with some aimless statement. To restate simply

Afaict, you've completely missed the question embedded in the comment. You then reacted to the "isolated" keyword with some aimless statement. To restate simply: If you are infected with omicron and are isolated, can you be infected by Delta from say...a shoe that picked it up days ago? Answer: No, but that doesn't mean either disappear in the short term.