Illustrated Articles

Parasites

  • This handout outlines internal parasites in dogs. Included are parasites of the gastrointestinal tract (roundworms, hookworms, whipworms, and tapeworms), as well as parasites of the circulatory system (heartworm). How each of these parasites can affect your dog and what you can do to prevent or treat infection are all explained.

  • Ivermectin + pyrantel is a heartworm disease preventive that treats and controls hookworms and roundworms in dogs. Ivermectin + pyrantel is given by mouth as a flavored chew tablet. At prescribed doses, ivermectin + pyrantel is well-tolerated. Some dog breeds (e.g., collies, sheepdogs, and collie- or sheepdog-cross breeds) are more sensitive to ivermectin than others; your veterinarian will advise you on the safety of using this medication in your dog. If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.

  • Ivermectin + pyrantel + praziquantel is a combination of anti-parasitic medications used to prevent heartworms and control roundworm, hookworm, and tapeworm in dogs. It is given by mouth as a flavored chew tablet. At prescribed doses, this product is generally well-tolerated but some dogs may experience decreased appetite, vomiting, diarrhea, or burping. Certain drugs may interact with those in this combination product; it is extremely important to let your veterinarian know about any medications or supplements that your pet is taking. If your dog has an adverse reaction to this product, call your veterinary office immediately.

  • Knemidocoptes is a type of bird mite that typically effects canaries, cockatiels and parakeets. It is commonly referred to as scaly face and leg disease. Specific antiparasitic drugs will be prescribed by a veterinarian to treat this disease.

  • Leishmaniasis is a disease caused by a protozoan parasite transmitted by sandflies and is most commonly seen in the Mediterranean, Middle East, and South and Central America. It has been reported in some parts of the United States. Clinical signs include hard skin nodules, weakness, decreased appetite, vomiting, diarrhea, and more. Diagnosis is based on travel history, clinical signs, and diagnostic testing. The goal of treatment is to resolve clinical signs. Prognosis is guarded to grave depending on the severity of the disease.

  • Leishmaniasis in Dogs

    Es una enfermedad causada por un parásito unicelular que afecta a los mamíferos en muchas partes del mundo y que está extendida por todos los países de la cuenca del Mediterráneo. Hay que tener en cuenta que la enfermedad también puede afectar a las personas, pero no existe una transmisión directa del perro al hombre o viceversa. Se transmite por la picadura de un pequeño mosquito (Phlebotomus spp).

  • Internal Parasites in Dogs

    En general, hay dos tipos de parásitos internos que afectan al perro. En primer lugar están los nematodos o gusanos redondos, de los cuales Toxocara canis (el gusano redondo intestinal más común) y Diarofilaria immitis (el gusano cardiaco) son los principales ejemplos. En segundo lugar tenemos los cestodos o gusanos planos, de los cuales Dipylidium caninum y las especies Taenia y Echinococcus son ejemplos importantes.

  • Lung flukes in North America are parasites called Paragonimus kellicotti that infect the lungs of cats after they have eaten an infected crayfish or rodents that have eaten infected crayfish. Eggs are then released by the parasite into the cat’s sputum to be coughed out or swallowed and released in the feces to continue the life cycle. Lung flukes can be found anywhere in North America but more commonly around the Mississippi River and Great Lakes. Infected cats can be symptom-free or may develop cough with sometimes bloody mucus, pneumonia, pneumothorax, lethargy and weakness. Diagnosis can include locating eggs of the parasite from feces or mucus from the lungs. X-rays can also reveal cysts in the lungs caused by the parasite. Treatment requires one of 2 commonly used anti-parasitic medications: Praziquantel or Fenbendazole. Although zoonotic, these parasites won’t transmit directly from cats to humans.

  • Lung flukes in North America are parasites called Paragonimus kellicotti that infect the lungs of dogs after they have eaten an infected crayfish or rodents that have eaten infected crayfish. Eggs are then released by the parasite into the dog’s sputum to be coughed out or swallowed and released in the feces to continue the life cycle. Lung flukes can be found anywhere in North America but more commonly around the Mississippi River and Great Lakes. Infected dogs can be symptom-free or may develop cough with sometimes bloody mucus, pneumonia, pneumothorax, lethargy and weakness. Diagnosis can include locating eggs of the parasite from feces or mucus from the lungs. X-rays can also reveal cysts in the lungs caused by the parasite. Treatment requires one of 2 commonly used anti-parasitic medications: Praziquantel or Fenbendazole. Although zoonotic, these parasites won’t transmit directly from dogs to humans.

  • In North America, many parasitic lungworms infect cats. Cats can become infected by swallowing infective stages of parasitic lungworm. The exact means of becoming infected varies according to the life cycle of the particular parasite. Signs can include coughing, heavy breathing, wheezing, sneezing, poor appetite or anorexia, weight loss, fever, enlarged lymph nodes, and ocular or nasal discharge, and may be more prominent in kittens due to their immature immune systems. Although the success rate of treatment depends on the severity of symptoms and the number of parasites present, the prognosis for recovery is generally good.