首页
登录
职称英语
The bacteria that cause a common food-borne illness show low drug resistance
The bacteria that cause a common food-borne illness show low drug resistance
游客
2023-09-09
48
管理
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 fluoroquinolonones, 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 and 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 fluoroquinolonones 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 drags in livestock. Last year the FDA banned the antibiotic from food-producing animals, citing the concerns raised by public health experts over drug-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. [br] The FDA banned the use of antibiotic from food-producing animals because public health experts were concerned about ______.
选项
答案
drug-resistant bacteria
解析
根据题干中的关键词food-producing animals和public health experts定位到倒数第二段,可知美国食品及药物管理局于去年禁止给产肉动物使用抗生素,其原因在于公共卫生专家对抗药细菌表示担忧。
转载请注明原文地址:https://tihaiku.com/zcyy/2998877.html
相关试题推荐
Researchoninsectssuggeststhat____________(细菌在动物进化过程中扮演着举足轻重的角色).bacteriapl
GMOrganismsByfarthemostcommong
GMOrganismsByfarthemostcommong
GMOrganismsByfarthemostcommong
[originaltext]It’scommonknowledgethatmusiccanhaveapowerfuleffecto
[originaltext]It’scommonknowledgethatmusiccanhaveapowerfuleffecto
[originaltext]It’scommonknowledgethatmusiccanhaveapowerfuleffecto
Dafterinterviewingbecomecommonpractice【S1】______intheUnit
Dafterinterviewingbecomecommonpractice【S1】______intheUnit
Dafterinterviewingbecomecommonpractice【S1】______intheUnit
随机试题
[originaltext][19]Withinthenextfewweeksatwin-enginedJetstreamwillt
【B1】[br]【B16】A、anyB、allC、onlyD、fewB语义衔接题。句意见81题。根据句意,即使你尽最大努力进行所有的必要改进,所以填
防火墙上不应开设门窗洞口,当必须开设时,应设置固定的或火灾时能自动关闭的防火甲级
建筑工程概、预算一般是以()为单位编制的A.单项工程 B.单位工程 C.分项
患者男,临床诊断为细菌性脑膜炎,细菌培养时发现在已知的金黄色葡萄糖球菌周围出现卫
在市场竞争日益激烈的情况下,铁路、民航纷纷推行代理制,增加销售网点,这其中的重要
一般来说,处在启动阶段与处于衰退期的行业面临的风险都比较高,但银行仍可进行长期贷
期货投机交易和套期保值交易均以获取价差收益为目的。()
直埋电缆的接头与相邻电缆的净距不应小于()。A.0.1m;B.0.25m
患者女,44岁。发热10天,稽留热,最高体温39.8℃,伴纳差、腹胀。2天前胸部
最新回复
(
0
)