This episode features a letter from “Sick & Tired,” a COVID-cautious listener who contracted the virus at a family reunion from a relative who appears to have a more cavalier attitude toward the pandemic. She asks how to handle the resentment she feels toward the relative. The episode features advice from Bintel, perspective from the past via the Forward’s archivist, Chana Pollack, and a special visit from Alison M. Buttenheim, a professor of nursing and health policy at the University of Pennsylvania who designs and tests inventions to change behaviors to curb the spread of infectious diseases.