Dog Diseases – Canine Coronavirus Disease
Canine Coronavirus Disease is an acute gastrointestinal infectious disease in dogs, and its clinical feature is diarrhea. The pathogen is a coronavirus, which mainly exists in the gastrointestinal tract of sick dogs, and is excreted with the feces, polluting the feed and the surrounding environment. Therefore, Canine Coronavirus Disease is mainly infected through the digestive tract. The virus has strong resistance to the external environment. The virus in the feces can survive for 6-9 days, and the pollutants can remain infectious for several days in the water. Therefore, once this disease occurs in a dog group, it is difficult to control its prevalence and spread in a short period of time. Viruses are sensitive to heat. Ultraviolet rays, Lysol, 0.1% peracetic acid and 1:800 diluted 1210 disinfectant can all kill the virus in a short time.
(1) Epidemiological characteristics The disease mostly occurs in cold winters, spreads rapidly, and often bursts into nests within a few days. Although the occurrence of this disease has no distinction of breed, age, and sex, it is usually caused by puppies first and then spread to dogs of other ages when it is prevalent in the dog group. The incidence and mortality of puppies are higher than that of adult dogs.
(2) Clinical features severe symptoms in puppies. Vomiting and diarrhea are the main symptoms of this disease. Vomiting at the beginning of the illness lasted for several days, and after diarrhea appeared, the vomiting was relieved or stopped. The diarrhea is mushy, semi-mushy or even watery, orange or green, and watery stools often contain mucus and blood. Sick dogs are depressed, lying prone, and anorexia, but their body temperature is generally not high. Adult dogs have mild symptoms.
The clinical symptoms and epidemiology of this disease are similar to those of rotavirus infection, and it is often mixed with rotavirus, canine parvovirus, etc., making the diagnosis more difficult. Therefore, the use of laboratory tests, such as electron microscopy of fecal material, virus isolation or fluorescent antibody test, is of great significance for the diagnosis of this disease.
There is currently no specific vaccine for immunization of this disease, and general comprehensive measures are mainly adopted. Symptomatic treatment is mainly adopted for sick dogs. Milk containing more lactose is stopped, and multi-enzyme tablets and lactic acid bacteria tablets are fed. Oral rehydration salts, intravenous infusion of compound sodium chloride solution to correct dehydration and electrolyte disorders, and intramuscular injection of dexamethasone to improve microcirculation and treat shock.