E coli O157H7 is a particularly dangerous strain of e coli.

大肠杆菌0157H7极为危险一种大肠杆菌菌株。

The cleanest strip was covered for 24 hours with the SH-7 strain.

这块最干净长条区域被SH-7菌株覆盖了24小时。

It's a complicated process isolating individual strains that thrive on the right kind of filth.

将在合适污秽中繁殖个体菌株隔离一个复杂过程。

Different strains of bacteria make different kinds of cheese.

不同菌株用不同奶酪。

Mycotoxins are poisonous substances that are produced by certain strains of mold.

真菌毒素由真菌某些特定种类菌株所有毒物质。

The mutation has been spreading rapidly in England this month.

本月，新冠病毒变异菌株在英国迅速传播。

Supplements today, though, contain only a few strains, so their helpfulness is limited.

但，今天补充剂仅包含一些菌株，所他们益处有限。

The researchers say this Chromobacterium strain could someday guide the development of new drugs.

研究人员称这种色素细菌菌株未来可能在研发新药方面起到指导用。

But even good bacteria like E-coli can develop deadly strains.

但即使像大肠杆菌这样好细菌，也能致命菌株。

In recent years, the increasing number of resistant strains has caused alarm.

近年来，越来越多耐药菌株引起了人们警觉。

Were the really E. coli that had come from the ancestral strain?

大肠杆菌真来自祖先菌株吗？

But then a new variant, a new strain of the disease arrived in America.

但后来一种新变种病毒，一种新疾病菌株进入美国。

Some strains produce toxins that won't cause any, or maybe just mild clinical symptoms.

有些菌株毒素不会引起任何症状，或者只轻微临床症状。

Well, the E. coli did behave differently than the same bacteria in isolation.

大肠杆菌致病菌株行为确不同于离析菌株。

E.coli is a particularly-the strains of it is a particularly nasty player.

大肠杆菌菌株家族中一种特别尤其令人厌菌株。

They scoured the genomes of different strains of the bacteria for genes that affect movement.

研究人员四处搜索不同细菌菌株基因组，发现影响行动基因。

What was being transferred from these heat killed smooth strain over to these rough strain?

什么东西从热杀死光滑菌株转移到了粗糙菌株上？

But there are some strains that can get you sick.

但有些菌株会让你病。

Reports of a new strain of the coronavirus overseas is nowhere near the movie version of an outbreak.

报道海外新菌株冠状病毒远不及电影版爆发。

So researchers created a new vaccine specifically to tackle this strain with minimal risk of mutating.

因此，研究人员专门开发了一种新疫苗，最小变异风险来对付这种菌株。