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Articles by Stephen C. Barr, BVSc, MVS, PhD, DACVIM

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Gastrointestinal protozoa (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM This flagellated protozoan parasite is found in the gastrointestinal tract of animals including man.

Lyme disease: Vaccinate, treat or do nothing? (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM In the USA, caused by spirochete Borrelia burgdorferi – it is the most common tick-transmitted zoonotic diseases in North America.

Does Wolbachia change treatment for heartworm disease? (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM Filarial nematode infection of dogs and cats – Dirofilaria immitis – adults (female worms up to 30 cm in length) live in pulmonary arteries causing respiratory, cardiac, and in some cases, renal disease.

Chagas' disease in the Northeast (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM This disease is caused by the zoonotic hemoflagellate protozoan parasite Trypanosoma cruzi.

Therapy and vaccination for a new canine parvovirus (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM The parvoviruses are small nonenveloped single stranded DNA virus. Three are known to infect dogs.

What to do with Ehrlichia canis/Anaplasma phagocytophylium positive cases (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM These tick-borne diseases of dogs and cats cause vasculitis leading to multisystemic dysfunction often characterized by thrombocytopenia and hyperglobulinemia.

Serology and vaccine conundrums of canine leptospirosis (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM This systemic bacterial infection of dogs (and very rarely, cats) causes mainly acute nephritis and hepatitis, vasculitis, and chronic carrier states.

Treating feline cryptococcosis (Proceedings) Apr 1, 2009 By: Stephen C. Barr, BVSc, MVS, PhD, DACVIM Cryptococcus neoformans is a saprophytic round yeast-like fungus with the ability to form a heteropolysaccharide capsule in tissues.

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