Grisha Stewart is a professional dog trainer, author, and international seminar presenter based in Oregon, USA. She helps talented teachers share their expertise with trainers and dog lovers. Check out her website grishastewart.com.
The “bird flu”, or avian influenza, has been around for a long time; it’s circulated in wild birds since the late 1990s. But like all viruses, it mutates over time—and influenza viruses are known to mutate very quickly. What’s more, some emerging strains are deadlier than others.