Los Angeles has discovered its first case of the new omicron COVID-19 variant in a fully-vaccinated person who recently traveled to South Africa. Health officials say the person is recovering and quarantining at home. Plus, KQED investigates the state’s failure to enforce regulations meant to protect farm workers and others exposed to wildfire smoke. Then, this weekend in the arts features an ephemeral art exhibition, Latinx poetry, a return to the stage for Voices of our City Choir and outdoor rock and roll.