How do new COVID variants get identified?

In recent months, our lives have been dominated by the delta and omicron variants, but now there might be another one lurking — temporarily named IHU.  How do variants get classified as a “variant of concern”? And 24-year-old singer Silvana Estrada is one of Mexico’s most promising young talents. We hear about her upcoming debut album, “Marchita,” and her first headlining US tour. Plus, Canadian farmers on Prince Edward Island are stuck with enough potatoes to fill 25 hockey stadiums due to an outdated export ban. The crop has since been declared virus-free but the ban persists, leaving the island with a bit of a potato crisis.