Lyme disease is spreading. Blame ticks — and climate change [Science Video]

Lyme disease is the most common vector-borne disease in the US; and climate change is helping it to spread even more. Animals such as deer, mice, squirrels, other critters in wooded area can be hosts to the bacteria, Borrelia burgdorferi, that causes Lyme disease in humans. When ticks feed off these hosts, the ticks become […]