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What Is Canine Brucellosis
Canine brucellosis is a contagious bacterial infection of dogs caused by Brucella canis. It is best known for causing abortion, infertility, and hidden inflammation in many tissues, and most infections are silent. The greatest risk comes from infected pregnant females, which shed huge numbers of bacteria in the fetus, fluids, and afterbirth at 40-50 days of pregnancy. The disease can also infect people, so strict hygiene is essential. Diagnosis combines bacterial culture with blood tests, and affected dogs are usually isolated or euthanized; breeding stock should be tested before mating to keep the infection out of a kennel.
What Is Canine Tuberculosis
Canine tuberculosis is a chronic, slowly progressive infection caused by Mycobacterium tuberculosis complex bacteria. Dogs usually catch it from infected people, cattle, or cats through the air or contaminated food and water, and it can pass to humans as well. Early signs are vague - odd appetite, tiredness, and gradual weight loss - but as the disease advances, dogs may develop a persistent cough, digestive upset, abdominal swelling, or skin ulcers depending on which organs are affected. Because the infection forms hardened granulomas in tissues, it is difficult to cure, and open or positive cases are generally humanely euthanized to protect public health. Strict hygiene and prompt testing of sick animals are the main defenses.
Canine Parvovirus: Symptoms and Treatment
Canine parvovirus is an acute, highly contagious infection that hits puppies hardest and carries a high death rate. It shows as either severe hemorrhagic enteritis or sudden heart failure, and because mixed infections are common, quick recognition matters. Supportive care, fluids, and vaccination are the cornerstones.
Canine Ehrlichiosis: What Owners Should Know
Ehrlichiosis is a tick-borne rickettsial disease with acute, subclinical, and chronic stages, and chronic cases can linger for years with vague signs like lethargy, fever, and low platelets that risk bleeding. Because many illnesses look similar, diagnosis leans on bloodwork, urine, imaging, and antibody or PCR tests. This guide walks through the stages and workup.
Symptoms of Canine Distemper: Early, Middle, and Late Stages
Canine distemper is a highly contagious, often fatal viral disease that mainly strikes unvaccinated puppies, with death rates up to 90 percent in young dogs. The virus, which survives for weeks when frozen but breaks down at 50 to 60 C, spreads by contact and airborne droplets and appears as respiratory, digestive, neurologic, or skin forms. Early signs are lethargy, fever of 39.5 to 41 C, eye and nose discharge, sneezing, and diarrhea; the middle stage adds pus-like discharge, vomiting, and appetite loss; the late stage brings neurologic signs such as paresis, ataxia, and seizures. Diagnosis uses test kits, blood work, and PCR, and care focuses on vaccination, immune support, and symptom control.
Canine and Feline Gastrointestinal Carcinoma
Gastrointestinal carcinoma is an uncommon but serious gut cancer in dogs and cats; when it arises in the stomach it thickens the wall and leads to ulcers and infection. Early surgical removal offers the best chance, while advanced cases — especially rectal — carry a poor outlook.
Canine and Feline Primary Lung Tumor
A primary lung tumor arises in the lung tissue itself and is seen mainly in older dogs and cats, with signs much like pneumonia — cough, weight loss, and poor appetite. Surgical removal of the affected lobe is the preferred treatment, though long-term outlook is limited.
Canine and Feline Nasal Adenocarcinoma
Nasal adenocarcinoma is a destructive tumor of the nasal lining in dogs and cats, producing a bleeding, pus-tinged discharge and gradually destroying the normal nasal structures. There is no reliably curative treatment, and the prognosis is poor.
Canine and Feline Oral Squamous Cell Carcinoma
Oral squamous cell carcinoma is an aggressive, invasive tumor of the mouth lining in older dogs and cats, usually appearing as a firm, ulcerated white mass on the gums, tongue, or palate. Treatment options are limited and the prognosis is generally poor.
Canine and Feline Cryptosporidiosis: Symptoms, Treatment, and Prevention
Cryptosporidiosis is a protozoal (coccidian) infection of dogs and cats that causes acute, watery diarrhea, vomiting, and abdominal discomfort. It is most severe in young, stressed, or immunocompromised animals and is zoonotic, so hygiene is essential.