As family and friends gather together to share Thanksgiving meals, it may be good to remember that foodborne illnesses are on the rise . These are mostly preventable with the right precautions.

Dr. Leana Wen, an emergency physician and clinical associate professor at George Washington University, is breaking down how to make sure you're preparing your holiday feast — and leftovers — safely.

Q: What causes foodborne infections?

Wen: Foodborne infections are caused by pathogens, like bacteria, viruses and parasites. In the U.S., the most common form of foodborne infection is norovirus , which is a contagious virus that spreads from person to person through sharing utensils or touching objects that an infected person has touched and then touching your mouth. There are also several b

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