Yoo-Hoo! Is anyone there? Why, yes, it’s four-year-old Beagle-Hound mix Yoo-Hoo! She ended up at the Duplin County Animal Shelter in North Carolina on February 2nd. When she arrived on the scene, it became clear that there were a few things that needed to be taken care of so that Yoo-Hoo could live a happier, healthier life. Sadly, one of those things was that Yoo-Hoo tested heartworm positive.