猪囊尾蚴病的检疫与防治

猪囊尾蚴病也称囊虫病，是由猪带绦虫(有钩绦虫)的幼虫寄生人和猪体所引起的一种人畜共患寄生虫病。因本病对人体健康和公共卫生危害极大，国家将其列为重点动物疫病之一，大力开展预防、控制和检疫净化。我县1998-2002年分别在9个乡(镇)开展调查，先后对血纸片和血清样品3165份采用酶联免疫吸附     

猪囊虫病疫苗研究进展

猪囊虫病是由猪带绦虫的幼虫引起的一种严重的人畜共患寄生虫病，在许多发展中国家均有流行，严重危害人体健康，且给养猪业造成巨大经济损失。猪囊虫病在我国被列为五大人畜共患寄生虫病之一，我国的东北、华北、西北和西南的部分地区该病流行较为严重。个别疫区猪囊虫感染率高达20％以上，人囊虫感染率也呈上升趋势。为了防制猪囊虫病，国内外许多学均对该病的免疫预防进行了许多探索，研制出各种不同的疫苗，现概述如下。     

猪囊虫病的检疫与防治措施

猪囊虫病也称囊尾蚴病，是由猪绦虫的幼虫寄生于猪的肌肉中而引起的一种人畜共患病。该病对人体健康和公共卫生危害极大，国家将其列为重点疫病之一。认真抓好检疫工作，大力开展预防控制和净化工作，对保障人类的身体健康、稳定畜牧业健康发展有着极其重要的意义。以下是笔者从事猪囊虫病检疫及防治工作的一些经验，供参考。     

猪囊虫病的流行、预防和控制

猪囊虫病(Swine cysticercosis)又称猪囊尾蚴病,是由猪带绦虫(Taenia solium)的幼虫-猪囊尾蚴(Cysticercus cellulosae)寄生于人、猪各组织器官所引起的危害严重的人畜共患寄生虫病.猪囊虫病不仅造成养猪业的巨大损失,而且也给人体的生命安全带来严重危害.人既是囊虫的中间宿主,又是终末宿主,而且是唯一的终末宿主.囊虫在寄生过程中,产生了一整套逃避宿主免疫应答的机制,从而能在宿主体内长期存活,可以存活十几年甚至数十年而无任何临床症状.本文试将囊虫病的流行病学、生活史做较详尽的阐述,以期广大兽医工作者对该病有进一步的认识,达到预防和控制囊虫病的目的.     

猪囊虫病的检疫与防治措施

猪囊虫病也称囊尾蚴病,是由猪带绦虫的幼虫寄生于猪的肌肉中而引起的一种人畜共患病,人猪同为中间宿主,犬、猫亦可感染.因该病对人体健康和公共卫生危害极大,国家将其列为重点疫病之一.因此,认真抓好检疫工作,大力开展预防、控制和净化工作,对保障人们的身体健康、稳定畜牧业健康发展有着极其重要的意义.以下是笔者从事检疫工作十余年来对如何做好猪囊虫病检疫及防治措施的一些经验,以供参考.     

张家界市首例猪囊虫病

猪囊虫病是严重危害人畜健康的一种人畜共患寄生虫病，其幼虫寄生在猪体肌肉中，引起猪囊尾锄病，成虫寄生于人体，引起猪带缘虫病，重症患者可导致死亡，该病被《家畜家禽防疫条例咧为三类防制对象，是肉品卫生检验的重要项目之～，通常在长江以南地区少见，我市首次在慈利县发现猪囊虫病，现将有关情况报告如下：一、发病经过1993年12月23日，慈利县新华书店职工张XX从该县环溪区食品站李XX肉案上购买了］2．5公斤猪肉，准备加工成香肠，当晚将肉切碎并排好了调料，后发现许多白色米粒料东西人猪肉中滚了出现，并不停的蠕动，针对这一情…     

猪囊尾蚴病检疫检验分析和防控措施

猪囊尾蚴病是由寄生于人体的猪带绦虫的幼虫寄生于猪体而引起的一种重要的人畜共患病,俗称猪囊虫病。该病不但给养猪业带来巨大损失,而且对人体健康造成危害。屠宰场加强对猪囊尾蚴病的检疫检验对于控制该病的发生、稳定畜牧业健康发展和人们的身体健康有着极其重要的意义。笔者结合从事生猪屠宰检疫检验工作,通过实地调查取得统计数据,经过科学分析后,阐述了猪囊虫病对人畜的危害、检疫检验和处理,并提出相应的防控措施。     

德化县首次检出猪囊虫病

猪囊虫病是人畜共jP病，其成虫（绦虫）寄生在人的小肠内，幼虫寄生于猪成人的横纹肌内，是动物检疫的重要项目之一，IL。7小1月6日我县检出首例猪囊虫病，现报告如下1羹虫病猪肉的发现我县一生猪商贩陈某于1997年1月3日从安徽省宿州市调入一批生猪共28头，到我县生猪定点屠宰场供屠宰。经宰前临床检查未发现异常，在1月6日屠宰时检疫员发现其中一头gO公斤重生猪的咬肌、腿肌、肩肿外肌、股内侧肌肉有如“米粒”状物，故取有较多“米粒”的股内侧肌送检。2由体签定检查股内侧肌发现有许多包囊寄生，包囊易与肌肉剥离，剥离后肌肉留有一圆…     

林口县猪囊虫病妨防制成果

猪囊虫病是由寄生于人小肠内的猪带绦虫的幼虫--猪囊尾蚴寄生于猪和人,偶见于骆驼、犬、猫的肌肉和其它器官而引起猪等的一种寄生虫病.对人类危害较重,在人畜间循环的人畜共患病并能给养猪     

怎样防制消灭猪囊虫病

猪囊虫病是由猪带绦虫的幼虫(猪囊尾蚴或猪囊虫)侵袭猪和人体各部肌肉组织和脑内所引起的疾病。所以猪囊虫是一种人畜共患的寄生虫病。猪带绦虫病是猪带绦虫的成虫寄生在人体小肠里所引起的疾病。人是猪带绦虫的唯一终末宿主,同时又是它的中间宿主。猪带绦虫病患者是猪囊虫病的传染源。由于猪带绦虫病和猪囊虫病在人畜中间循环感染,不仅给养猪业带来巨大的经济损失,更重要的是给公     

Heartworm in dogs in Canada in 1985

In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%).

Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada.

     

Heartworm in dogs in Canada in 1988

In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%).     

Heartworm in dogs in Canada in 1984

In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal.

Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection.

     

Heartworm in dogs in Canada in 1991

In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium.     

Heartworm in dogs in Canada in 1989

In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated.

Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively.

     

Heartworm in dogs in Canada in 1987

In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%).     

Heartworm in dogs in Canada in 1986

In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%).

Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada.

     

Heartworm in dogs in Canada in 1983

In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario.

Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously.