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Dogs + Parasites

  • 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).

  • Liver fluke (Heterobilharzia americana) is a parasitic worm that affects dogs in the southern Atlantic and Gulf states and causes a disease called schistosomiasis. The fluke’s lifecycle is complex and involves a freshwater snail. Dogs can become infected by swimming or wading in water that has the larval stages of the fluke. The flukes cause granulomas (inflammatory nodules) to form in the liver, intestines, and other abdominal organs. Symptoms of gastrointestinal and liver disease may be present.

  • 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.

  • Lotilaner + moxidectin + praziquantel + pyrantel (brand name Credelio Quattro®) is a combination antiparasitic used to protect against ticks, fleas, heartworm disease, roundworms, hookworms, and tapeworms in dogs and puppies 8 weeks of age and older and weighing at least 3.3 lb (1.5 kg). It comes in a chewable tablet to be given monthly. Its use is currently only approved for dogs.

  • Lung flukes are parasitic worms (trematodes) that infect dogs’ lungs after they have eaten an infected crayfish or rodents that have eaten infected crayfish. Infected dogs can be symptom-free or may develop cough with sometimes bloody mucus, pneumonia, pneumothorax, lethargy and weakness.

  • Lungworm infection is caused by one of several parasitic roundworms. Cats can get a lungworm infection by swallowing infective stages of parasitic lungworm. The exact way that a cat is infected varies according to the life cycle of the parasite. This handout outlines the signs, diagnosis, and treatment for lungworm in dogs.

  • The bacterium that causes Lyme disease can be transmitted to dogs through the bite of an infected tick, most commonly the deer tick (black-legged tick), which is found in the midwestern and eastern United States and throughout Canada.

  • Metronidazole (brand name Flagyl®) is used off label in the treatment of certain infections, such as those caused by Giardia and Trichomonas, in dogs, cats, small mammals, birds, reptiles, and other animals. It is often used to treat diarrhea and other intestinal problems.

  • Milbemycin oxime + lufenuron is a heartworm disease preventive that also treats internal parasites (e.g., whipworms, hookworms, and roundworms) and controls flea populations in dogs. Milbemycin oxime + lufenuron is given by mouth as a flavored chew tablet. At prescribed doses, this medication is well-tolerated; when used off-label at higher doses for treating mites, side effects have been observed. Your veterinarian will advise you on the safety of milbemycin oxime + lufenuron use in your dog. If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.