如果这种演变使得病毒毒性大增，寄主体质就会进一步遭到削弱。
If that evolution makes the virus more virulent, so much the worse for the host.
办公室里流行着一种病毒性疾病。
病毒性脑炎患者广泛使用抗生素，没有预防性或补救性适应症。
Antibiotics is extensively used in the patients suffered with viral encephalitis without indications prophylactically or remedially.
世卫组织将与所有合作伙伴紧密合作，预防和控制病毒性肝炎。
WHO will work in close collaboration with all our partners to prevent and control viral hepatitis.
它是一个重要的全球卫生问题，也是最严重类型的病毒性肝炎。
It is a major global health problem and the most serious type of viral hepatitis.
感染性支气管炎，也是由细菌引起，细菌性支气管炎常伴发病毒性上呼吸道感染。
Infectious bronchitis may also be caused by bacteria. Often bacterial bronchitis follows a viral upper respiratory infection.
答：基孔肯亚热是一种通过受感染蚊子叮咬传播的病毒性疾病。
A: Chikungunya fever is a viral illness that is spread by the bites of infected mosquitoes.
预防和控制病毒性肝炎需要开展更多的工作。
More needs to be done to prevent and control viral hepatitis.
某些药物和一些生理疾病，比如病毒性疾病或甲状腺疾病能够引起与抑郁症相同的症状。
Certain medications, and some medical conditions such as viruses or a thyroid disorder, can cause the same symptoms as depression.
它怎么可能被认为是病毒性视频？
病毒性更改是开始时很小的更改 —如将保存三个元素的数组更改为一个只包含两个元素的数组。
Viral changes are those that start small — like changing an array that holds three elements to one that contains only two.
黄热病是一种病毒性疾病，见于非洲和美洲的热带地区。
Yellow fever is a viral disease, found in tropical regions of Africa and the Americas.
世卫组织已为马尔堡和其它病毒性出血热的诊断建立一个国际专家实验室网络。
WHO has established an international network of expert laboratories for the diagnosis of Marburg and other viral haemorrhagic fevers.
但是细菌性和病毒性的感染产生不同的ROS，所以就会有不同种类的荧光。
But bacterial and viral infections produce different ROS's and so have different types of glows.
如何预防病毒性肝炎？
病毒性急性支气管炎，通常咳出少量白色粘液痰。
With viral bronchitis, small amounts of white mucus are often coughed up.
基孔肯雅热是一种通过蚊子传播的病毒性疾病。
Chikungunya is a viral disease that is spread by mosquitoes.
甲型肝炎是一种病毒性肝脏疾病，它可造成轻度或严重疾患。
Hepatitis a is a viral liver disease that can cause mild to severe illness.
在与病毒性肝炎的斗争方面，世卫组织做了哪些支持工作？
What is WHO doing to support the fight against viral hepatitis?
一位历受尊敬的科学家皮特•杜博格，这位研究病毒性癌症的先驱未曾抛弃这种猜想。
One once-respected scientist, Peter Duesberg, who did early research on viral causes of cancer, would not drop the idea.
流感是一种通常在每年秋天和冬天发生的病毒性疾病。
The flu is a viral disease that tends to appear in the fall or winter each year.
各国认识到世卫组织“所作的有益工作，比如通过计划免疫和血液及注射安全宣教，帮助各国预防病毒性肝炎，”他说。
Countries recognized WHO's "good work, for example in helping them with viral hepatitis prevention through immunization, and blood and injection safety education", he says.
如何治疗病毒性肝炎？
如果你能开发一种研究工具使病毒性增值，并且更有用，那你就建立了一种具有现象力的商业。
If you can build a research tool that propagates virally and gets more useful with each person who uses it, you build a business with phenomenal power.
污水处理不足会传播血吸虫病、沙眼、病毒性肝炎和霍乱。
Inadequate sewerage spreads infections such as schistosomiasis, trachoma, viral hepatitis and cholera.
黄热病是一种由受感染的蚊虫传播的急性病毒性出血疾病。
Yellow fever is an acute viral haemorrhagic disease transmitted by infected mosquitoes.
病毒性快乐生存时间相对较短，但是却能持续约一年。
Viral happiness was relatively short lived, however, lasting about a year.
“世界上没有一个国家不存在病毒性肝炎问题，”他说。
"There is not a country in the world where viral hepatitis isn't a problem," he says.
“世界上没有一个国家不存在病毒性肝炎问题，”他说。
"There is not a country in the world where viral hepatitis isn't a problem," he says.
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