It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.
这取决于有多少细菌能在数秒内从地上转移到食物上以及地有多脏。
They didn't need to - many bacteria do that for themselves.
因为这并无必要——很多细菌它们自己就是这么干的。
As I have mentioned before many bacteria are not harmful.
我以前也说过很多并非有害细菌。
Many bacteria secrete AHLs, and simultaneously absorb them from their surroundings.
许多细菌分泌该物质，并且与此同时从周围的环境中吸收这种物质。
Its genome is twice as big as that of any other known virus and bigger than that of many bacteria.
其基因组是其它任何已知病毒的的两倍，也比许多细菌的大。
Many bacteria including some pathogens can enter this state and maintain virulence or pathogenicity.
许多细菌包括病原微生物可进入这一状态并保持毒力或致病性。
C. difficile is one of many bacteria which can live in the human gut without causing health problems.
艰难梭菌是可以在人体肠道内生活而不引起健康问题的多种细菌之一。
The objective of a preoperative hand scrub is to remove or kill as many bacteria as possible from the hands of the surgical team.
术前洗手的目的是为了尽可能多地去除或杀死手术人员手部的细菌。
Microbiologists found that keyboards can even have up to five times as many bacteria as a bathroom, and can include dangerous ones like e.
微生物学家发现，键盘上的细菌比浴室里得要多出五倍，还包括那些危险的细菌，比如大肠杆菌和大肠杆菌群。
Many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.
好多细菌没有鞭毛也没法靠自己的力量运动，同时还有一些细菌可以通过一些尚不确知的机制在水面滑行。
But with so many bacteria - hundreds of different species can inhabit your skin alone - how can we begin to master this chemical language to examine its medical potential?
但是这么多的细菌，单是生活在皮肤上的就有数百种之多，我们怎么开始支配这些化学语言以检测它们的医用潜能呢？
By comparing the DNA sequences with publicly available reference sequences for 1500 bacterial and other species, they excluded all human DNA and identified as many bacteria as they could.
通过与公开的1500种细菌的参照序列进行对比，他们排除了人类DNA，并尽可能多地鉴定出其中的细菌种类。
Petbite infant event is not rare, there are many bacteria animal's mouth, the babybite skin is very susceptible to infection, cause skin ulceration, such assepsis, osteomyelitis and rabies.
宠物咬伤婴幼儿的事件并不鲜见，动物的口腔中存在许多细菌，宝宝被咬之后皮肤很容易受感染，导致诸如皮肤溃烂、败血症、骨髓炎甚至狂犬症。
Bad air quality can contribute to many health problems such as asthma, and improperly discarded garbage can spread bacteria that are dangerous to health.
糟糕的空气质量会导致许多健康问题，比如哮喘，而丢弃不当的垃圾会传播细菌，危害健康。
It is home to an intricate food web of mosquito larvae, midges and bacteria, many of which can survive only in this unique habitat.
它是一个由蚊子幼虫、蠓和细菌组成的复杂食物网的家园，它们当中有许多只能在这个独特的栖息地生存。
Bacteria are among the simplest organisms in nature, but many of them can still talk to each other, using a chemical "language" that is critical to the process of infection.
细菌是自然界中最简单的有机体之一，然而许多细菌还能使用一种在感染过程中起到关键作用的化学“语言”相互交谈。
Many of today's antibiotics cure various diseases by blocking the function of ribosomes in bacteria.
目前，许多抗生素是通过阻断细菌中核糖体的作用来治疗一些疾病的。
When plants and animals die, microbes break them down; slime molds then devour many of the bacteria, releasing their nutrients for other organisms to grow on.
动植物死亡后，被微生物分解；黏菌随后会吞食掉许多细菌，释放出他们的营养物质供其他有机体生长。
TB is one of the most common infections in people living with HIV/AIDS – because so many people are already infected with TB bacteria (see No. 1 above).
结核是艾滋病毒/艾滋病患者中最常见的感染之一 -因为如此多的人已感染结核细菌（见上文1）。
And like many gut bacteria it has acquired genetic sequences that allow it to produce lots of different digestive enzymes.
像许多肠道细菌一样，它已经拥有的基因序列，使它能产生很多不同的消化酶。
Like many people, you may not be aware that bacteria in your mouth can lead to serious problems if you neglect oral health.
跟许多人一样，如果你忽略口腔健康的话，也许并不会觉得口腔细菌会造成多严重的问题。
Many yoghurts are loaded with live bacteria, and labelled with claims that consuming these microorganisms can be good for your health.
很多酸奶都添加了活性益生菌，并贴上了称该类微生物有益健康的标签。
News of salmonella's approval also comes as a relief to many homemakers, who, until now, had been cautioned against letting the bacteria spread.
沙门氏菌被许可的新闻同样解放了很多家庭妇女，这些女性在今天以前都被警告要防止细菌传播。
The ancient marshy Nile would have hosted many eye disease - causing bacteria.
湿软的古尼罗河流域或许流行着许多由细菌引起的眼科疾病。
One of many Marine bacteria uncovered by the Census of Marine Life, this species was found in the eastern South Pacific Ocean.
海洋生物普查中发现的众多海洋细菌中的一种。这种细菌发现于东南太平洋。
Many types of bacteria are found on human skin, especially associated with sweat glands and hair follicles.
人体皮肤上有多种细菌，特别是汗腺和毛囊部位。
In 2000, American scientists discovered that many Marine bacteria contain a gene in their genome that encodes a new kind of light-harvesting pigment: proteorhodopsin.
在2000年，美国的科学家发现一些海洋细菌的基因组中包含的一种基因能够能够编制一种新的光色素：变形菌视紫质。
In 2000, American scientists discovered that many Marine bacteria contain a gene in their genome that encodes a new kind of light-harvesting pigment: proteorhodopsin.
在2000年，美国的科学家发现一些海洋细菌的基因组中包含的一种基因能够能够编制一种新的光色素：变形菌视紫质。
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