Heartworm related photos from Flickr
To be honest, the phenomenon of heartworm disease and the medications used to control it are unlikely to figure highly on the Flickr site - which is where we are attempting to source photographs. If there's not a lot or they don't seem too relevant to heartworm prevention, please accept our apologies in advance.
Of course if you visit this page on a day when it's just full of exciting and interesting photo's about heartworm disease and control medications then it's been our pleasure to help!!