We tackle your biggest questions about immunity: If you have it, how long does it last? Can you be infected twice? What does "herd immunity" mean? Plus, Gabrielle Union on handling the new normal, PTSD, motherhood, and her new passion.

You've heard of red wine and white wine but have you ever heard of blue wine? This blue version of wine is given a taste test to see how it compares to the classics.

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