Dogs Diseases – Distemper

Dogs Diseases – Distemper

Distemper mainly harms puppies. The pathogen is canine distemper virus. Sick dogs are characterized by bipolar fever, rhinitis, severe digestive tract disorders and respiratory tract inflammation. Neurological symptoms often appear in the later stages of the disease.

The various secretions and excrements (nasal juice, saliva, tears, pericardial fluid, pleural fluid, ascites, and urine) of sick dogs, as well as blood, cerebrospinal fluid, lymph nodes, liver, spleen, spinal cord and other organs contain large amounts of viruses, and can The secretions of the marrow respiratory tract and urine detoxify to the outside world. Healthy dogs have direct contact with sick dogs or through contaminated air or food, and they are infected through the respiratory or digestive tract. In addition to puppies, which are most susceptible to infection, foxes and minks in fur animals are also very susceptible to canine distemper.

Diagnosis points

(1) Epidemiological characteristics The disease occurs frequently in the cold season (from October to April of the following year), especially in units or areas where dogs are more concentrated. Once the disease occurs in the dog group, unless under absolute isolation conditions, it is difficult for other puppies to avoid infection. Breastfeeding puppies rarely get the disease because they can obtain antibodies from breast milk. Puppies between 3 months and 1 year old are usually the most susceptible.

(2) The clinical characteristics of the body temperature are biphasic fever (ie, the body temperature rises as high as 40C at the beginning of the disease, and then drops to normal after 1 to 2 days, and after 2 to 3 days, the body temperature rises again); when the body temperature rises for the second time ( A small number of cases died at this time) respiratory symptoms, coughing, sneezing, serous to purulent nasal juice, dry nose; eyelid swelling, purulent conjunctivitis, corneal ulcers can often occur in later stages; lower abdomen and inner thigh skin Rice grains have big red spots, edema and purulent papules; often vomiting; initial constipation, shortly after diarrhea, foul smell in stool, sometimes mixed with blood and air bubbles. In a few cases, hyperkeratotic lesions of the skin of the soles and wing of the nose can be seen.

Some sick dogs. Neurological symptoms appear at the beginning of the illness, and some do not show neurological symptoms until 7-10 days after the illness. In mild cases, the lips and eyelids are locally twitched, while in severe cases, salivation and chewing, or turning, bumping, or foaming at the mouth, clenched teeth, twitching on the ground, and epileptic seizures, which last from a few seconds to a few minutes, and the number of seizures varies from a few seconds to a few minutes. Several to ten times a day. Most of these dogs have a poor prognosis. Some only have neurological symptoms such as local convulsions or convulsions of one limb, two limbs and the entire hindquarters, ataxia and other neurological symptoms. Even if these dogs are cured, they often have sequelae such as hindquarters weakness.

Because this disease is often mixed with canine infectious hepatitis and other diseases and secondary infection with bacteria, the symptoms are complicated. Therefore, only a preliminary diagnosis can be made based on the above symptoms. The final diagnosis requires disease materials (conjunctiva, bladder, stomach, lung, trachea and brain, serum) to be sent to the testing unit for virus isolation and neutralization tests. Inspection of.


(1) Regular vaccination The current canine distemper vaccine produced in China is a cell culture attenuated vaccine. In order to improve the immunization effect, the following immunization procedures should be followed. The puppies are immunized for the first time at 6 weeks of age, for the second immunization at 8 weeks of age, and for the third immunization at 10 weeks of age. I will be immunized once a year from now on. The dose of each immunization is 2 ml, which can obtain a certain immunization effect. In view of the fact that it takes a certain period of time (7-10 days) after vaccination to produce a good immune effect, and the current prevalence of canine distemper is relatively common. Some dogs have been infected with canine distemper virus before immunization, but they have not shown clinical symptoms. Under the influence of certain stress factors (changes in living conditions, long-distance transportation, etc.), it can still trigger clinical symptoms and develop disease. This is an important reason why some dogs still develop canine distemper after immunization. one. In order to improve the immunization effect and reduce the infection rate, it is best to vaccinate the puppies with 4~5 ml of high immunity serum for dogs when buying puppies, and then inject it once a week later. Combined vaccine, which is safe and reliable, and can reduce the incidence.

(2) Strengthen veterinary hygiene

and anti-epidemic measures. Each breeding farm should try to achieve self-reproduction and self-support. In the epidemic season of this disease. It is strictly forbidden to bring dogs outside the venue into the venue.

(3) Timely isolation and treatment Timely detection of sick dogs, early isolation and treatment to prevent secondary infections is the key to improving the cure rate and reducing the mortality rate. In the early stage of the disease, anti-canine distemper hyperimmune serum (or canine five-unit hyperimmune serum) or recovery dog ​​serum (or whole blood) can be injected intramuscularly or subcutaneously. The amount of serum should be determined according to the condition and the size of the dog, usually 5-10 ml/time,
Use it continuously for 3 to 5 days to get a certain effect. It has been reported that while the treatment with hyperimmune serum, the combined application of Kangduling freeze-dried powder injection can improve the therapeutic effect. Its usage and dosage are as follows: Use sterile normal saline or 20 ml of water for injection before treatment. Dissolve, inject 2 to 4 bottles by intravenous drip for medium-sized dogs, and reduce the dosage for dogs with younger months. According to recent reports, in the early stage of the illness, the application of Kenbeckang injection has better curative effect, especially when used with hyperimmune serum at the same time, its curative effect is better than that of single use. The usage and dosage of Kenibeikang is 0.1 to 0.3 ml/kg body weight, intramuscular injection, 1 to 2 times a day, and the amount can be increased as appropriate for severe cases. In addition, early application of antibiotics (such as penicillin, streptomycin, etc.) and symptomatic treatment are of great significance for preventing secondary bacterial infections and rehabilitation of sick dogs.

(4) Strengthen disinfection. All kinds of disinfectants, such as 84 disinfectant, sodium hypochlorite, etc., should be used for thorough disinfection of kennels and sports grounds.

Related post

Symptoms and treatment of Canine ehrlichiosis.

Symptoms and treatment of Canine ehrlichiosis.

Overview Ehrlichiosis canis is caused by Ehrlichia canis, an acute or chronic infectious disease that occurs primarily in canines. The main…
Symptoms and treatment of canine uremia.

Symptoms and treatment of canine uremia.

Overview Uremia is usually caused by kidney failure in dogs, which makes the metabolites and other toxic substances in the dog…
Symptoms and treatment of Canine fever.

Symptoms and treatment of Canine fever.

Overview The cause of dog fever is generally caused by a cold. Special conditions or body inflammations, infectious diseases lead to…

Leave a Reply

Your email address will not be published. Required fields are marked *