After infected with CPV, CPV will attack the cells of intestinal epithelial and cardiac muscle in canine, and the clinical anifestations are gastrointestinal diseases and myocarditis, the puppies are mostly myocarditis. After infection, the canine will have a high incidence and mortality rate. CPV often presents an outbreak epidemic, and canine of different ages, sexes and breeds can be infected. 

Canine distemper is a worldwide acute and highly contagious viral infectious disease. The natural infection route of CDV is mainly through the upper respiratory tract. After infected with CDV, CDV will attack cells of intestinal epithelial and cardiomyocytes. The main clinical manifestations are gastrointestinal diseases and myocarditis, and most of the puppies are myocarditis. Canine distemper is a kind of infectious disease with high incidence, high mortality and frequent outbreak.

CCV belongs to single stranded RNA virus, which can cause different degrees of gastroenteritis, and the mortality rate of puppies is higher after infection. The incubation period of CCV is 1~8 days, and the infection will soon spread to the whole population. 
Usually canine coronavirus and parvovirus are mixed infected, causing epidemic diarrhea in dogs.


 

CHW is an infectious disease that can infect dogs of any age through mosquito bite. Because CHW lives in canine's heart, it can cause chronic endocarditis, heart hypertro phy and right ventricular dilatation. When the infection is severe, venous congestion can lead to ascites and hepatomegaly.

Giardia is a unicellular protozoa that can spread through food and water polluted by feces. Pear flagellates and Giardia are often the culprits of intractable diarrhea in dogs and cats，and Giardia is less specific to hosts and belongs to zoonotic infectious parasites.

Toxoplasmosis is a kind of zoonosis caused by Toxoplasma gondii, which is worldwide distributed and seriously endangers human health. Toxoplasma gondii can infect all kinds of livestock and wild animals, but it is most susceptible to young animals.

FeLV mainly induce leukemia and immunodeficiency diseases in feline. FeLV can be vertically transmitted to the next generation by infected feline during pregnancy or lactation, or horizontally transmitted to the susceptible population through contact with the saliva, lacrimal glands, urine or feces.

 

FIV is a type of retrovirus that is mainly transmitted horizontally through saliva or bites. Although vertical transmission of maternal antibodies can also occur, it will gradually be eliminated within four months of birth or weaning. The kittens that were tested positive need to be retested after 6 months to ensure that the positive results of the kittens are not caused by changes in their mothe

FPV can cause feline leukocytopenia, also known as feline distemper, and it’s an acute highly contagious disease. FPV can be transmitted through direct or indirect contact under natural conditions, and can be transmitted vertically to the fetus through the placenta during pregnancy. Feline distemper is more frequent in winter and spring.

 

Toxoplasmosis is a kind of zoonosis caused by Toxoplasma gondii, which is worldwide distributed and seriously endangers human health. Toxoplasma gondii can infect all kinds of livestock and wild animals, but it is most susceptible to young animals.