How to stay safe while buying groceries and eating in public; can you host or attend a potluck dinner?

Months into the coronavirus pandemic, many people say shopping for food and dining at reopened restaurants remains a fraught experience.
Supermarkets and restaurants have introduced measures to keep their stores safe, including plexiglass dividers, capacity limits and requirements for customers and employees to wear masks. But food-safety guidelines continue to evolve as we learn more about how the new coronavirus is transmitted.
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