A sick senior dog.

Heartworm in Dogs – Causes, Signs, Treatment & Prevention

Heartworm in dogs is a serious condition caused by an internal parasite that’s transmitted by mosquitoes. After a mosquito bites your dog, heartworm microfilaria (baby worms) pass into the bloodstream, where they eventually mature into larvae, which will grow into adult heartworms. Infected dogs can have hundreds of these worms in their heart, lungs and […]

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