Over the next month, fans will be packing stadiums and other venues to watch the World Cup. Dr. Abraar Karan, an infectious diseases expert at Stanford University, joins CBS News with tips for staying safe and healthy.
Over the next month, fans will be packing stadiums and other venues to watch the World Cup. Dr. Abraar Karan, an infectious diseases expert at Stanford University, joins CBS News with tips for staying safe and healthy.
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