Deerfield Blog

New Research Alters Debate on Heartworm Preventative Resistance

The latest study on heartworm preventative resistance spotlights the most important factors in preventing this condition in the Ozarks.  Clarke Atkins DVM, DVM, DACVIM, professor of veterinary medicine and cardiology at North Carolina State University just completed his study in the Mississippi River Delta.  This area is a hotbed for heartworm disease and has been the recent focus area for studies on the resistant MP3 heartworm.

His study suggests that dog owner’s failure to purchase and administer preventatives every 30 days plays a larger role in canine heartworm disease than resistance to heartworm preventatives.  He also adds that current research does not point to any particular product being more effective than another.

His study does not disprove the resistant MP3 strain, only that administering medications in a timely manner (every 30 days) is the most important factor in preventing this parasite in the dog.

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