首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The bacteria that cause a common food-borne illness show low drug resistance in Australia, unlike similar strains from the Unite
The bacteria that cause a common food-borne illness show low drug resistance in Australia, unlike similar strains from the Unite
admin
2010-09-25
28
问题
The bacteria that cause a common food-borne illness show low drug resistance in Australia, unlike similar strains from the United States and Europe, a study has found. Scientists behind the finding say Australia’s de facto ban on certain antibiotics in poultry(家禽) and other livestock helps explain why.
In the study, researchers analyzed samples of Campylobacter jejuni(空肠弯曲杆菌) bacteria from 585 patients in five Australian states.
Scientists found that only 2 percent of the samples were resistant to ciprofloxacin(环丙沙星), one of the group of antibiotics known as fluoroquinolonones. By contrast, 18 percent of Campylobacter(弧形杆菌) samples in U.S. patients are immune to fluoroqulnolonones, which have been used in the U.S. to prevent or treat respiratory(呼吸的) disease in poultry for a decade.
The study, led by Leanne Unicomb, a graduate student at Australian National University in Canberra, was published in the May issue of the journal Clinical Infectious Diseases.
"The findings add to the growing body of evidence suggestive of the problems of using fluoroquinolonones in food-producing animals," Unicomb wrote in an email.
Campylobacter is the most common food-borne disease in the U.S. and many other industrialized countries.
People can contract the pathogen(病原体) by consuming undercooked poultry or meat, raw milk, or contaminated(被污染的)water.
Symptoms include fever, vomiting, and diarrhea(腹泻). In rare cases, the disease can trigger paralysis or death.
"In most industrial countries Campylobacter is more commonly reported than Salmonella(沙门氏菌), a better-known cause of food poisoning," Unicomb said.
"The number of cases of Campylobacter has been on the rise in Australia since the early 90’s."
In the U.S., about 1.4 million people contracted Campylobacter infections last year, according to the U.S. Centers for Disease Control end Prevention (CDC) in Atlanta, Georgia.
While the infection rate in the U.S. has dropped over the last decade, the bacteria have grown more drag-resistant.
According to the CDC, surveys between 1986 and 1990 found no signs of resistance to the antibiotics in U.S. Campylobacter infections. But by 1997, strains resistant to the antibiotics accounted for 12 percent of human cases. In 2001 the figure climbed to 18 percent.
Public health experts say many factors contribute to Campylobacter’s drug resistance; the widespread use of fluoroquinolonunes by U.S. poultry farmers over the past decade is one of them.
Fluoroquinolones were first approved for use in humans by the U.S. Food and Drug Administration (FDA) in 1986. In 1995 the FDA granted poultry farmers permission to the use the drugs in livestock. Last year the FDA banned the antibiotic from food-producing animals, citing the concerns raised by public health experts over drag-resistant bacteria.
Frederick Angulo, an epidemiologist with the CDC, monitors the drug resistance of food-borne pathogens in the U.S. food supply. "The people who are most likely to get infected with food-borne diseases include the most vulnerable people in the population--infants and young children and also the elderly," he said. He says that Campylobacter infections are entirely preventable, as is the bacteria’s antibiotic resistance. "In many ways what’s occurring with Campylobacter is an indicator for a broader issue, which is... antibiotic-resistant bacteria in the food supply," he said.
In many industrialized countries, the most common food-borne disease is ______.
选项
答案
Campylobacter
解析
根据题干中的关键词industrialized countries和most common定位到第六段,可知弧形杆菌是美国和其他许 多工业化国家中最常见的食源性疾病。
转载请注明原文地址:https://kaotiyun.com/show/pwz7777K
0
大学英语六级
相关试题推荐
A、Tokeepthespace.B、Togiveuptheroom.C、Togetintotheauditorium.D、Toreservetheroom.D
Livingisrisky.Crossingtheroad,drivingacar,flying,swallowinganaspirintabletoreatingachickensandwich--theycana
Manypeopleseemtothinkthatsciencefictionistypifiedbythecoversofsomeoftheoldpulpmagazines.Thisisunfortunate
Morethan2,300universitiesinover100countrieshaveintroducedChinesecoursestotheircurricula,andyoungoverseasnation
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganimallivedonthewestern【B2】______.Itlookedsomewha
Childrenaregettingsofatthattheymaybethefirst【B1】______todiebeforetheirparents,anexpertclaimedyesterday.Today
Sofar,therobotseemstobethebest,servantinthehouse.Youcan【B1】______ittodifferenttasks:polishthefloors,dustt
A、Itreflectscommercialinterests.B、Itisafashionableprofessionalevent.C、Itisanessentialaffair{orinternationalcine
A、She’samaid.B、Shesellsstovesandrefrigerators.C、She’sanapartmentmanager.D、She’sarealestateagent.C选项和职业有关。男士问他们离
FreshwaterlifeitselfhasnevercomeeasyintheMiddleEast.EversinceTheOldTestament(旧约全书),Godpunishedmanwith40day
随机试题
急腹症在诊断未明了时,禁忌使用热疗的原因是
阅读材料,根据要求完成教学设计。“获取网络信息的策略和技巧”模块强调学生在经历信息获取的过程中,掌握信息获取的策略与方法。教材着重要求学生学习网络信息检索的一般方法,归纳网络搜索引擎的使用技巧,这将为本模块其他内容和选修模块的继续学习奠定重要基础。本节学
根据财务制度和会计制度的规定,采用分期付款方式销售的开发产品,每期实现的销售收入,应按当期收到的价款或按合同约定的当期收价款确定。()
影响材料导热系数的主要因素有()。
库存现金限额由开户银行根据开户单位5~7天的日常零星开支所需要的现金核定。()
一般纳税人销售软件产品并随同销售一并收取的软件安装费、维护费和培训费等收入,应按照增值税混合销售的规定征收增值税,并可享受软件产品增值税即征即退政策。()
中小企业是我国最具活力的企业群体,在GDP中比重约为60%,提供了约70%的城镇就业岗位,但受需求不足、成本上升等不利因素的影响,中小企业的发展遇到较大困难,为此国家加大了对中小企业的扶持力度,这有利于()。
某地大规模爆发甲流,你被要求处理此事。你怎么做?
某学生努力学习数学,只是为了取悦数学老师,此时学生的学习动机类型是()。
Lookatthechartsbelow.Itshowsroadaccidentfiguresindifferentcountriesfrom1992to1999.Whichfiguredoeseachsenten
最新回复
(
0
)