Canine parainfluenza virus infection
This disease is caused by parainfluenza virus and is a viral infectious disease mainly characterized by acute respiratory inflammation. The disease was first discovered in the United States in 1967.
The virus can be isolated from nasal fluids and throat swabs of infected dogs. Dogs become infected through droplet inhalation. Young dogs, weak dogs and dogs in a stressed state are very susceptible to infection due to insufficient righteousness. The course of the disease ranges from one to several weeks, and the mortality rate is about 60%.
[Main Symptoms] This disease is characterized by fever, large amounts of serous or mucus nasal discharge at the beginning of the disease, cough in some sick dogs, and red and swollen tonsils. Symptoms are worsened in mixed-infected dogs. Autopsy of dogs infected alone showed a small amount of bleeding in the lungs. Histological observation showed inflammatory changes in the respiratory tract and local lymph nodes, catarrhal rhinitis, accumulation of wandering white blood cells and cell disintegration in the bronchi and capillaries, and thickening of mucosal epithelial cells.
[Treatment] There is no specific drug for this disease. When secondary bacterial infection such as Bordetella bronchiseptica occurs, antibiotics or transamine drugs can be applied. For fever, Qingkailing or Shuanghuanglian injection can be given intramuscularly or intravenously. For coughs, you can use 10g of mint, 15g of Pediculus, 10g of Angelica dahurica, 10g of almond, 10g of Platycodon, 15g of honeysuckle, 15g of Forsythia, 15g of aster, and 15g of Radix Rhizome, decoction and take it orally to achieve the effects of dispersing wind, clearing heat, relieving lungs and relieving cough. Compound licorice mixture, compound fresh bamboo extract, cough liquid, etc. can also be taken orally.
[Prevention] It is necessary to strengthen feeding and management at ordinary times to reduce the triggering factors of this disease. Once the disease occurs, the sick dog should be isolated in time and provided with enhanced care to avoid secondary infection as much as possible. At present, the five-part canine vaccine (canine distemper, canine parvovirus, canine infectious hepatitis, rabies, canine parainfluenza) can be used to prevent this disease.
