Library

Infectious Diseases

  • Heartworm Disease in Dogs

    La enfermedad de los gusanos del corazón o dirofilariosis es una enfermedad grave y potencialmente fatal. Está causada por un parásito sanguíneo llamado Dirofilaria immitis.

  • Lyme Disease in Dogs

    La enfermedad de Lyme está causada por una espiroqueta, Borrelia burgdorferi. Una espiroqueta es un tipo de bacteria. La enfermedad de Lyme se transmite a los perros a través de la picadura de una garrapata. Una vez en el torrente sanguíneo, el organismo de la enfermedad de Lyme será transportado a diferentes partes del cuerpo y puede llegar a las articulaciones. Antes se pensaba que sólo un tipo concreto de garrapatas podían transmitir la enfermedad, pero ahora parece ser que muchos tipos de especies están implicadas. El tipo más común de garrapata portadora de la enfermedad de Lyme es la garrapata ciervo.

  • Feather loss occurs either because the bird is truly losing feathers or because the bird, or its cage-mate, is picking out its feathers. Feather-picking is often a behavioral problem, especially in the larger species of birds (such as cockatoos, macaws, and African gray parrots). However, feather loss and feather-picking can also be caused by diseases that result in irritation or pain for the bird, or damage to, or inappropriate growth of feathers. Your veterinarian may have to many perform several diagnostic tests to rule out potential causes. Treatment of feather loss depends on the cause. Feather loss and feather-picking are complicated problems; for specific advice, your bird should have a thorough work-up by a veterinarian familiar with birds.

  • Flea and tick prevention consists of a variety of products used to control flea and/or tick infestations on your pet and to prevent infestations inside the home. Fleas and ticks can be found worldwide. Fleas can live in many climate zones, but they prefer humid and shady areas, such as under leaf litter. Ticks can also live in many climate zones, and prefer humid and shady environments, especially areas with woods, shrubs, weeds, and tall grasses. Prevention is key to avoid infestations in your home, severe allergic reactions (in both pets and people), and to prevent disease. Many flea and tick preventives are available. Your veterinarian will help you find an appropriate product that works best for your and your pet.

  • Giardiasis is an intestinal infection in humans and animals, caused by a microscopic protozoan parasite. The parasite occurs worldwide and is a common cause of "Traveler's Diarrhea" in people. Outdoor enthusiasts who inadvertently consume contaminated water may develop "beaver fever", which is another name for giardiasis in people.

  • Heartworm disease is serious and potentially life-threatening to dogs. Treatment involves several components to combat potential bacterial infection, kill the heartworm larvae (microfilaria), kill the adult heartworms, and then test to confirm successful treatment. Complete rest for a dog undergoing treatment is essential. The prognosis for dogs after heartworm treatment is generally good if the pet owner follows all veterinary recommendations closely.

  • Hepatozoonosis in dogs is caused by ingestion of one of two organisms: H. americanum and H. canis. Both parasites are more common in the southern United States. The clinical sign and treatments for dogs with hepatozoonosis differ depending on the parasite species causing the infection. In either case, with appropriate treatment, the prognosis is generally good.

  • Canine herpesvirus or canine herpes is a systemic, often fatal disease of puppies caused by canine herpes virus. It may remain latent in tissues after a dog is infected and may be passed on to other dogs, particularly to fetuses developing in the mother's uterus. Clinical signs in puppies include difficulty breathing, nasal discharge, anorexia, soft stools, crying, seizures, and sudden death. Symptoms in adult dogs include coughing and sneezing, miscarriage, lesions on the external genitalia, conjunctivitis, and corneal ulcers. Disease may be prevented by avoiding contact with infected dogs. Pregnant dogs should be isolated to prevent infection.

  • Histoplasmosis is an infection caused by histoplasma, a fungus found in moist soils and especially prevalent around the Ohio, Mississippi, Missouri, and St. Lawrence Rivers, as well as the southern Great Lakes. Fungal spores are inhaled or ingested and cause infection in many sites including the lungs, gastrointestinal tract, eyes, joints, and spleen. Clinical signs can include fever, lethargy, anorexia, weight loss, coughing or trouble breathing, diarrhea, and straining while defecating. Diagnosis includes routine bloodwork, urinalysis, X-rays, antigen testing, and cytology or histopathology. Treatment requires long term anti-fungal medication such as itraconazole. Prognosis is guarded depending on how ill the patient is. This disease is transmissible to humans, especially if they are immunocompromised.

  • Hookworm is a parasitic infection of the gastrointestinal tract of dogs. Their name is derived from the hook-like mouthparts they use to anchor themselves to the lining of the intestinal wall. How the infection is spread along with clinical signs, diagnosis, treatment, and prevention are covered in this handout.