So What's Up with Parasites?


All animals are treated for worms, fleas and ear mites when they arrive at the ARLNH. Oftentimes an animal will need to be treated more than once. If you see any indications of the following parasites, please contact the Medical Director for appropriate medications.


Coccidia are tiny single-celled parasites that live in the wall of your dog’s intestine. They are found more often in puppies, but they can also infect older dogs and cats.

Coccidiosis, the disease caused by coccidia, may not cause any signs in dogs but is usually more serious in puppies. The most common sign of coccidiosis is diarrhea. More severe infections can cause bloody diarrhea. Severe infections, especially in puppies, can kill them. Click Pets & Parasites/Coccidia for additional information.

Ear Mites

If your kitten is scratching her ears and shaking her head a lot then it is likely she has ear mites. Take a look inside her ears, a dark discharge resembling coffee grounds coating the inside of the ears is indicative of ear mites. Click Pets & Parasites/Ear Mites for additional information.


It is normal for puppies and dogs to scratch themselves from time to time. However, if you notice excessive scratching check for fleas or flea dirt. Click Pets & Parasites/Fleas for additional information.


Giardiasis is an intestinal infection that is caused by the parasite giardia. Dogs develop the infection by ingesting infectious offspring/cysts that are shed in another animal’s feces. This infection can be passed between animals and humans. Click Pets & Parasites/Giardia for additional information.

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Animal Rescue League of NH

545 Route 101

Bedford, NH 03110


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