The absolute best way to stop the spread of COVID-19 is to not have extended family gatherings, or participate in gatherings at all. But not everyone is going to be capable of following that guidance.
The U.S. Centers for Disease Control (CDC) has published some guidelines to minimize transmission of COVID-19 for those who will be visiting with family during the upcoming Thanksgiving holiday.
These anti-coronavirus tips also include things people can do at the table, during the holiday meal, to minimize spread risk.
My guess is it's also helpful in minimizing other airborne seasonal illnesses, and it's interesting science. Stay safe everyone, and here's a great Twitter thread from Dr. Tara Smith about the subject. As she says about the meal itself – "Keys: masks, ventilation, distance, hand hygiene and not sharing utensils. Keep it short."