What you need to know to stay safe from ticks this summer

According to the Centers for Disease Control, as many as 476,000 people in the U.S. contract Lyme disease every year. Climate change and human encroachment into wilderness areas means ticks and the disease-causing bacteria they carry are becoming more common. Dr. Linden Hu, an immunology professor and co-director of the Lyme Disease Initiative at Tufts University, joins John Yang to discuss.

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