On Monday, the Massachusetts Department of Public Health issued a press release about this parasite. Learn more about what it is, where it comes from, and how to avoid it.

Kevin Connelly of Holbrook was a star hockey player in high school. But he suffered an injury at that time which required knee surgery. It would be more than 30 years before the lingering effects of that high school injury would become an issue for Kevin. Over the years, the pain in his knee...