从而我们可以简单地认为H5N1病毒缺乏成为大流行流感的能力，而H5N1要具有更强的传染性，它的致病性就不得不减弱。
That led to hopes that the H5N1 virus simply lacked the ability to be a true pandemic killer and that to become more transmissible, it would necessarily have to become less dangerous.
对于一种新型并且传染性很强的病毒而言，每个人都有被感染的可能。现在大流行流感疫苗的供应不足以满足世界人口的需求。
Current supplies of pandemic vaccine are inadequate for a world population in which virtually everyone is susceptible to infection by a new and readily contagious virus.
昨天有一些正面的消息传出，墨西哥科学家说猪流感病毒的传染性并不比每年流行的季节性流感的传染性更大。
Some positive news surfaced yesterday: Mexican scientists said the contagiousness of the swine flu is no greater than that of the seasonal flu that circulates every year.
去年，当传染性非典型肺炎在中国流行时，世界各地的科学家通力合作，在很短的时间内使疫情得到了控制。
Last year, when SARS was spreading rapidly in China, scientists all over the world cooperated with each other and prevented the disease from spreading in a short period of time.
艾滋病是一种难以治愈的传染性疾病，随着患病人数的增多，艾滋病已经成为最严重的危害人类健康的全球性流行性疾病之一。
AIDS is a difficult to cure infectious diseases, with an increase in the number of patients, AIDS has become the most serious hazards to human health of the global pandemic.
目的在全国抗非典取得阶段性胜利的情况下，对上海市传染性非典型肺炎的流行病学调查情况作一总结。
Objective This paper is a progress analysis of SARS field epidemiological investigation in Shanghai under the condition of national great victory of SARS containing.
他们发现传染性疾病的流行可以成为区域性智商的一项强有力的预测标识。
They find that the prevalence of infectious diseases can be a powerful predictor of regional smarts.
具有一定的传染性，可引起广泛的流行。
Has certain infection, may cause the widespread unpopularity.
具有一定的传染性，可引起广泛的流行。
Has certain infection, may cause the widespread unpopularity.
应用推荐