A contact acute intestinal infectious disease caused by epidemic diarrhea virus and characterized by diarrhea, vomiting and dehydration.

Belongs to the genus Coronavirus. Viruses are mostly round in shape; there are petal-like protrusions on the envelope. RNA viruses

Intestinal epithelial cell tissue growth. It is not resistant to the external environment and disinfectants and can be inactivated by exposure to sunlight for 6 hours. It is sensitive to ether, chloroform, etc., and can be killed by general disinfectants.

Source of infection: infected pigs, resistant pigs, contaminated products, etc. Route of transmission: direct infection through mouth. Personnel, materials, vehicles, mosquitoes, flies, mice, etc. can cause indirect transmission.

It can cause disease in pigs of different ages and breeds. Among them, piglets and weaned nursery pigs are seriously ill, and they mostly occur in winter and spring.

Immunity is mainly acquired through cellular immunity.

Watery diarrhea, yellow or egg-shaped feces with a foul smell, and obvious dehydration of the whole body (affected by pig immunity, popular strains, and age of onset)

Most of the body temperature is normal. If they eat less, the body temperature rises by 1-2 degrees. Later, the body temperature drops, accompanied by varying degrees of vomiting symptoms. Most of them vomit after eating milk, and vomit yellow-white curds with mucus, followed by watery diarrhea. Yellow, gray or transparent water sample.

In severe cases, the skin around the anus becomes red, the whole body is severely dehydrated, and the eye sockets are sunken.

Piglets in the same litter were infected quickly and would become sick within 1-2 days. The course of the disease in the entire pig farm can last for 1-2 months or even longer.

Nursery piglets: individual vomiting, grey-yellow sticky and loose feces, the incidence rate can reach 100%, and the mortality rate is 5%-20%

Medium and large pigs and breeding pigs: Individual vomiting, depression, not eating or eating less, incidence rate 10-90%, mortality rate low 1%-3%, natural recovery after 5-7 days.

After diarrhea occurs, the immunity of pigs decreases, and piglets may develop paratyphoid, paratyphoid and other diseases.

In the stomach and small intestine, it can be seen that the small intestine is distended, the intestinal wall is thinned, there is yellow liquid gas in the field, and the intestinal wall is congested and bleeding. Mesenteric congestion, lymphadenopathy and edema. The gastric mucosal bottom showed varying degrees of bleeding.

Cell vacuolation was seen in the colon, but no desquamation was seen. The dead pig carcasses were emaciated and dehydrated, with dry skin and sunken eyeballs. The lesions are milder than TGE.

starvation therapy

medical treatement

Basic ideas for prevention and control

Solution for one pig waiting to be delivered in the gestation house with ped

Solutions to peds occurring on site