结论SARS病毒具有传染性极高、传播速度极快等特点，传播因素最大的可能是飞沫。
Conclusions the SARS virus had the characters of high infectivity and high transmitting speed. The SARS virus was most likely spread by droplet transmission.
牛在血吸虫病的传播因素中又比较重要，高的牛的患病率必定对疾病的控制是一个很大的威胁。
The buffalo plays a comparatively important role in the spreading factor of schistosomiasis, and the high morbidity rate of buffalo is a big threat to disease control.
方法采用回顾性调查研究方法计算麻疹疫苗(MV)效力(VE)，采用病例对照研究进行传播因素分析。
Methods Reviewing investigation was used for the MV coverage rate and immunization efficacy (ve), a case control study was carried for seeking risk factors.
是什么因素和力量导致了英语的传播？
面对面的交流绝不是沟通的唯一形式，在过去的两百年里，大众传播艺术已经成为当代社会的主导因素之一。
Face-to-face contact is by no means the only form of communication and during the last two hundred years the art of mass communication has become one of the dominating factors of contemporary society.
在美国殖民地，报纸和小册子等广告和传播媒体成为推销商品和服务的主要因素。
In the American colonies, advertising and communications media like newspapers and pamphlets became a major factor in marketing goods and services.
只有那些有办法传播到这些岛屿的物种才能进行长途旅行，各种因素在起作用，导致岛上新殖民者的多样化组合。
Only those species with ways of spreading to these islands were able to undertake the long journeys, and the various factors at play resulted in diverse combinations of new colonists on the islands.
我觉得种子传播可能是一个因素。
“缺乏空间和生命受到威胁所造成的压力是增加动物与人类之间传播的因素。”
"Stress caused by lack of space and the threat to their lives are factors that increase transmission between animals and to humans."
正在进行进一步研究以确定昆虫和其它因素在将该病传播给人类方面的准确作用。
Further research is in progress to establish the exact role of insects and other factors in the transmission of the disease to humans.
传播严重程度取决于寄生虫、病媒、人类宿主和环境等有关因素。
The intensity of transmission depends on factors related to the parasite, the vector, the human host, and the environment.
感染者或者易感人群的聚集、受到削弱的公共健康基础设施、以及现有疾病控制系统的中断，都是导致媒介传染病传播的因素（36）。
The crowding of infected and susceptible hosts, a weakened public health infrastructure, and interruptions of ongoing control programs are all risk factors for vectorborne disease transmission (36).
如果病毒继续传播，除了流感病毒内在变异性之外，其它因素也可能会以完全无法预测的方式影响目前疾病模式的严重程度。
Apart from the intrinsic mutability of influenza viruses, other factors could alter the severity of current disease patterns, though in completely unknowable ways, if the virus continues to spread.
在过去二十年里，这一趋势成为性传播感染在中国死灰复燃的一个主要因素。
This trend over the past two decades is a major factor in the resurgence of STIs in China.
其他因素包括它是否会致病、它的传播模式、它是否能在人与人之间传播以及它是否会传播到城市(例如通过输血)等等。
Other factors include whether it causes disease, its mode of transmission, whether it can spread from person to person and whether it has spread to urban areas - via blood transfusions, for example.
至今它们大肆传播的确切原因不得而知，但专家表示，可能的因素包括全球旅行的增加和某些杀虫剂的禁用。
It is not known what caused their sudden spread, but experts have theorized that an increase in global travel and the banning of certain pesticides may be partly responsible.
这一研究发现值得关注，因为智力是未来学习表现的一个重要预测的因素，多环芳烃在城市环境和全世界都广泛传播。
This finding is of concern because IQ is an important predictor of future academic performance, and PAHs are widespread in urban environments and throughout the world.
虽然在咳嗽和打喷涕时通过大的飞沫传播被认为是主要的流感传播途径，但是通过受污染的手传播可能是一个促进因素。
Although transmission by large droplets when people cough or sneeze is considered the major route of influenza spread, transmission via contaminated hands may be a contributing factor.
否则，无法保证实现传播，也不可能确切地了解哪些因素对于测试非常重要。
Otherwise, we can't be sure of propagation, and being able to know exactly what happens is essential for testing.
目前，流行文化因素甚至也开始传播。
Yet, even popular cultural aspects have begun to spread as well.
蚊子滋生地邻近人类居住地，是基孔肯雅热重要危险因素，也会传播其他疾病。
The proximity of mosquito vector breeding sites to human habitation is a significant risk factor for chikungunya as well as for other diseases that these species transmit.
Ostler先生认为，现代民族国家主义和技术这两个因素将会阻碍英语的传播。
Mr Ostler suggests that two new factors-modern nationalism and technology-will check the spread of English.
Ostler先生认为，现代民族国家主义和技术这两个因素将会阻碍英语的传播。
Mr Ostler suggests that two new factors-modern nationalism and technology-will check the spread of English.
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