What to know as ticks spread to new regions and bring new threats

It's summertime, and ticks are out in full force. While in certain parts of the country, ticks have long been an issue, they're now spreading to new regions and bringing new threats. William Brangham discussed the blood-sucking terrors with Holly Gaff, a mathematical ecologist who studies ticks at Old Dominion University. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy