文章来源:未知 文章作者:enread 发布时间:2013-02-06 06:12 字体: [ ]  进入论坛
The UK dog population is estimated to be around ten million, with dogs producing approximately 1,000 tonnes of excrement1(粪便) each day. New research has shown that dogs act as a major source of the parasite2 egg, Toxocara, which can potentially contaminate the public environment and infect humans. The aim of the study, led by Dr Eric Morgan and colleagues from the University of Bristol's School of Veterinary Sciences and published in the international scientific journal, Veterinary Parasitology, was to identify where efforts to control the parasite should focus, in the interests of protecting public health.
The parasitic4 worm, called Toxocara, is a rare cause of disease in humans, responsible for occasional cases of abdominal5(腹部的) pain, loss of sight, and potentially asthma6 and epilepsy(癫痫). The link with dogs, host to the adult parasites7, has long been accepted, but this study has shown that in spite of decades of efforts through worming and control of dog fouling8, the parasite remains9 common in our pets and on our streets.
For the first time, relative contributions of dogs and the other hosts of the parasites, cats and foxes, are estimated, as well as total egg output, using data from Bristol. With the help of additional information from a previous study led by Vet3 School colleague, Dr Jane Murray, the researchers estimate that nearly four tonnes of dog waste are produced in Bristol each day and nearly 1,000 tonnes nationally.
Given that each adult female worm can lay 12,500 eggs or more per day, this equates10 to around 3.7 billion eggs shed per day within the city of Bristol, or a number close to the world's human population every two days.
Dr Eric Morgan, Senior Lecturer in Veterinary Parasitology and senior author of the paper, said: "These results are not all that surprising but they are likely to differ widely between places. We provided a method for estimating different sources of contamination with Toxocara eggs anywhere in the world. This will hopefully help locally appropriate control measures to be put in place. The data also provides a baseline against which future changes can be measured, as we currently lack any good evidence of how effective steps such as anti-fouling legislation are in reducing egg load and human disease."
Regular worming, especially of younger dogs and continued efforts to promote removal of feces from public areas by dog owners are key to reducing the reservoir of infection for humans. For the public, the message is clear: bag it, bin11 it, and worm your dog.


1 excrement IhLzw     
  • The cage smelled of excrement.笼子里粪臭熏人。
  • Clothing can also become contaminated with dust,feathers,and excrement.衣着则会受到微尘、羽毛和粪便的污染。
2 parasite U4lzN     
  • The lazy man was a parasite on his family.那懒汉是家里的寄生虫。
  • I don't want to be a parasite.I must earn my own way in life.我不想做寄生虫,我要自己养活自己。
3 vet 2HfyG     
  • I took my dog to the vet.我把狗带到兽医诊所看病。
  • Someone should vet this report before it goes out.这篇报道发表之前应该有人对它进行详查。
4 parasitic 7Lbxx     
  • Will global warming mean the spread of tropical parasitic diseases?全球变暖是否意味着热带寄生虫病会蔓延呢?
  • By definition,this way of life is parasitic.从其含义来说,这是种寄生虫的生活方式。
5 abdominal VIUya     
  • The abdominal aorta is normally smaller than the thoracic aorta.腹主动脉一般比胸主动脉小。
  • Abdominal tissues sometimes adhere after an operation.手术之后腹部有时会出现粘连。
6 asthma WvezQ     
  • I think he's having an asthma attack.我想他现在是哮喘病发作了。
  • Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。
7 parasites a8076647ef34cfbbf9d3cb418df78a08     
寄生物( parasite的名词复数 ); 靠他人为生的人; 诸虫
  • These symptoms may be referable to virus infection rather than parasites. 这些症状也许是由病毒感染引起的,而与寄生虫无关。
  • Kangaroos harbor a vast range of parasites. 袋鼠身上有各种各样的寄生虫。
8 fouling 51c8adea6ef6cc2e33d171f8ae739b2d     
n.(水管、枪筒等中的)污垢v.使污秽( foul的现在分词 );弄脏;击球出界;(通常用废物)弄脏
  • He was sent off for fouling the other team's goalkeeper. 他因对对方守门员犯规而被罚出场。 来自《简明英汉词典》
  • A basketball player is allowed five personal fouls before fouling out. 篮球运动员侵人犯规五次即被罚下场。 来自《现代汉英综合大词典》
9 remains 1kMzTy     
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
10 equates 7b5a7f0640b2cedfd39d5d5473d911d4     
v.认为某事物(与另一事物)相等或相仿( equate的第三人称单数 );相当于;等于;把(一事物) 和(另一事物)等同看待
  • He equates success with material wealth. 他认为成功等同于物质财富。 来自《简明英汉词典》
  • This equates to increased and vigor, better sleep and sharper mental acuity. 也就是说可以起到增强活力,改善睡眠,提高心智的作用。 来自互联网
11 bin yR2yz     
n.箱柜;vt.放入箱内;[计算机] DOS文件名:二进制目标文件
  • He emptied several bags of rice into a bin.他把几袋米倒进大箱里。
  • He threw the empty bottles in the bin.他把空瓶子扔进垃圾箱。
TAG标签: dog human parasite