Knife pseudo-bone head tsutsugamushi disease is a zoonotic tsutsugamushi disease caused by parasitic cockroaches of the genus K. pneumoniae in the small intestine of pigs and humans. The intermediate host is the red cockroach and the brown pheasant.
(1) Epidemic characteristics The terminal host of the pseudo-naked aphid is mainly pigs and wild boars, which occasionally infect people. China first reported the worm in 1956, and then found it in more than 10 provinces such as Gansu, Shaanxi, Henan, Shandong, Jiangsu, Fujian, Yunnan, and Guizhou. The infection rate of pigs in some parts of Shaanxi is as high as 22. 4%-29. 4%. As of 1980, there have been 10 reports of human infection of the worm in China. The mature pregnant egg segments of the pseudo-naked aphids parasitic in the small intestine of the pigs are excreted with feces, and the pregnant or infected eggs are swallowed by the intermediate host, and develop into cysticercus in the blood chamber for about 31 days. Infected with pigs after 50 days. After swallowing a red-skinned or brown-streaked tortoise containing the cysticercosis, the pigs enter the small intestine and attach to the intestinal wall, and develop into adults after 30-40 days.
(2) There are no obvious symptoms of mild symptoms of clinical symptoms. When there are many parasites, the pigs suffer from anorexia, abdominal pain, vomiting, diarrhea, mucus in the feces, weight loss, anemia, slow growth and development, and severe intestinal obstruction. The pig farm power network is the most professional pig technology website in China.
(3) The pathological changes lacked characteristic lesions, only the intestinal mucosa was inflamed, swollen, mucous membrane thickened, and local bleeding points.
(4) Diagnosis According to the stool examination, the egg fragments or eggs can be found, or the necropsy can be confirmed in the small intestine after death. The eggs are round, the diameter of 84 is brownish yellow, the egg shell is thicker, and the egg contains six hooks, which have obvious gaps with the embryonic membrane. The adult is milky white and 96-167 cm long.
(5) Prevent the management of feces, accumulate fermentation, kill eggs, prevent the spread of pathogens; control the grain and feed, prevent the occurrence of red plague, avoid pigs, people to eat infection; do preventive deworming.
(6) The following drugs can be used for treatment: praziquantel, 15 mg per kilogram of body weight, orally. Sulfur dichlorophenol, 30-50 mg per kilogram of body weight, orally. Albendazole, 10-20 mg per kilogram of body weight, orally.
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