然而，在以白杨等树为主的林分，最初的舞毒蛾爆发很快就被病毒流行病所抑制。
In stands dominated by trees such as aspen, however, incipient gypsy moth outbreaks are quickly suppressed by viral epidemics.
在某些情况中，输入病毒流行时间长达一年以上。
In some cases, the imported virus has circulated for more than a year.
“该国众多地区面临着禽流感病毒流行的危险，”多梅内奇说。
"The bird flu virus is threatening to become endemic in several parts of the country," Domenech said.
例如，在肯尼亚，艾滋病毒流行率已从10%降至6%。
In Kenya, for instance, HIV prevalence has fallen from 10 percent to 6 percent.
目的研究我国轮状病毒流行株nsp4基因的变异特点。
Objective To clarify the features of gene variation among epidemic strains of human rotavirus NSP4 in China.
目的了解北京地区流行性腮腺炎病毒流行株基因型分布和变异情况。
Objective To understand geographic distribution of mumps virus genotypes and variation of circulating mumps virus strains in Beijing.
但在南撒哈拉的许多国家，已发现艾滋病毒流行率很高的正是这些人群。
These are the same groups in which HIV prevalence has been found to be high in many sub-Saharan countries.
结核病死亡率在一年内下降了15.4%，艾滋病毒流行率增速在两年内降低了7.7%。
TB mortality decreases by 15.4 percent in one year; increase in HIV prevalence drops 7.7 percent over two years.
所有这些国家在艾滋病毒流行程度和家庭财富五分位数之间的关系上，并没有显示出一致性。
The relationship between the prevalence of HIV infection and household wealth quintile did not show consistent trends in all countries.
研究人员必须从病毒流行过城镇中的人群中抽样取血以确定被病毒感染而未被发现的人数。
Researchers must draw blood from a sample of people in affected towns and cities to estimate how many people were infected and never knew it.
但在其修正了之前的数据的同时，报告也总结说，中国及其邻国越南的病毒流行度都在上升。
But after refining its previous data as well, the report concluded that the prevalence rate was rising in China, as well as in neighbouring Vietnam.
鉴于潜在的艾滋病毒流行，耐药结核可对非洲的死亡率产生严重影响和需要紧急采取预防性行动。
Given the underlying HIV epidemic, drug-resistant TB could have a severe impact on mortality in Africa and requires urgent preventative action.
例如在斯威士兰，尽管全国艾滋病毒流行率为26%，但国家艾滋病总预算中仅有17%用于预防。
For example in Swaziland, just 17% of the country's total budget for AIDS was spent on prevention despite a national HIV prevalence rate of 26%.
数值替代：艾滋病毒流行率在至少一个确定的子总体中始终超过5%，但在城市地区孕妇中1%以下。
Numerical proxy: HIV prevalence is consistently over 5% in at least one defined sub-population, but is below 1% in pregnant women in urban areas.
2010年，世界各地艾滋病毒流行情况和当地的应对各有不同，相关趋势、进展率和结果也发生了变化。
In 2010, HIV epidemics and responses in different parts of the world vary with shifting trends, progress rates and outcomes.
2008年8月1日—博茨瓦纳是全球艾滋病毒流行最为严重的国家之一，全国约有24%的人口感染了艾滋病毒。
August 1, 2008-botswana has one of the worst HIV epidemics on the planet. Nearly 24% of people live with the virus.
据世行测算，该国婴儿死亡率很高（新生儿死亡率为60‰）， 15-49岁人群中艾滋病毒流行率为2.2%。
There is a high infant mortality rate (60 for every 1000 births) and the prevalence of HIV among those between15-49 is 2.2 percent, according to World Bank estimates.
在争取减少非洲麻疹死亡人数方面的重大成就以及发表的关于艾滋病毒流行的更准确概况等里程碑也成为了新闻焦点。
Landmarks, such as major success in the fight to cut measles deaths in Africa, and the release of a more accurate profile of the HIV epidemic, captured news headlines as well.
本实验旨在研究1982年一株鹅细小病毒流行株基因的分子生物学特征，并与国内外分离株相应基因进行分析比较。
This study is to research the molecular characteristics of the virus that popular in 1982. Mean - while, the ns and VP gene were compared with other strains.
在全世界大约11个受影响最严重的国家中，有8个国家在过去五年里15 -24岁年龄组中的艾滋病毒流行率得到下降。
In 8 out of 11 of some of the world's most affected countries, HIV prevalence in the age group 15 to 24 years has declined in the past five years.
当然，一项行为之所以流行，就跟病毒流行一样，肯定背后有起诱因或者触发机制，“挑战冰桶”是怎么这样传递下去的呢？
Of course, a behavior is so popular, just like a virus epidemic, certainly with trigger mechanism or incentive. Then how "Ice Bucket Challenge" spread?
在这些非洲国家中，估计结核病的负担由于与艾滋病毒流行的相关性而达到顶峰之后，在过去10年的大部分时间里都在下降。
In these African countries, the burden of TB is estimated to have been declining for much of the last decade after a peak linked to the HIV epidemic.
新的模型测试显示，实施自愿的“检测及治疗”方法可以在10年之内大幅减少HIV感染病例，并且最终会使病毒流行中止。
New modeling research suggests that implementing a voluntary "test and treat" approach could dramatically reduce new HIV cases beginning within a decade and ultimately halt the pandemic.
当前狂犬病毒流行株与人用、兽用狂犬病疫苗株在基因和蛋白质水平出现的多处变异可能会导致流行株毒力的增强以及疫苗对它们的保护效果降低。
The Chinese isolates of rabies virus were diverged from the vaccines in both genes and deduced proteins. These divergences may result in the inefficiency of the vaccines.
自2002年发生登革3型病毒主要流行以来，登革3型病毒一直是里约热内卢过去5年中最主要的血清型。 当前，里约热内卢正经历新一轮登革2型病毒流行。
Rio de Janeiro, where DEN-3 has been the predominant circulating serotype for the past 5 years since the major DEN-3 epidemic in 2002, is now experiencing the renewed circulation of DEN-2.
办公室里流行着一种病毒性疾病。
政府计划通过使用一种病毒来减少兔子的数量，这种病毒已经在其他地方的兔子种群中造成了毁灭性的流行病。
The government proposes to reduce the population by using a virus that has caused devastating epidemics in rabbit populations elsewhere.
如果每头猪的内脏都是培养皿，那么可能的大流行性流感病毒已经在养猪场熬了几十年了。
If the innards of each pig are Petri dishes, then possible pandemic flu viruses have been stewing on hog farms for decades.
如果这种病毒能够通过空气传播，或者如果一名感染者在不知情的情况下进入了人口密集的地区，那么埃博拉可能已经成为一种全球流行病。
If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic.
如果这种病毒能够通过空气传播，或者如果一名感染者在不知情的情况下进入了人口密集的地区，那么埃博拉可能已经成为一种全球流行病。
If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic.
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