When you spend time around an animal—whether it's a pet, a farm animal, or a wild animal—there's a chance you can pick up an infection.
An infection you get from an animal is called a zoonosis (say "zoh-uh-NOH-sus"). Some infections can seem mild, but others can be quite serious. So it's a good idea to learn about your risks and how to protect yourself and other people. People who are most in need of protection are children under age 5, pregnant women, and people with weak immune systems.
When Alex Nocifera's 12-year-old Weimaraner, Bodi, started panting hard during a hiking trip, he became concerned. When the dog later showed no interest in her food or water, he knew something was really wrong.
Still, he didn't see the end coming. "Now that I look back, there were slight indications," Nocifera says of Bodi's last days. "I remember a few months prior to the trip she was just a bit less active," he says. He chalked her slower pace up to aging.
Often, it is only in retrospect that...