Instead, it was more likely to be from an infectious source.
相反，更有可能来自一个传染源。
Hosts can be diseased from latency condition by the decreasing of host's immunity and stimulation of condition, and so on , then become a carrier and infectious source.
外界刺激、宿主免疫力的降低等因素都可以使宿主由潜伏感染状态发病，成为带毒者和传播源，因此，对潜伏感染建立及维持机理的研究就显得尤为重要。
The peasants, especially middle-aged and old populations, were key crowd of malaria treatment and prevention. Malaria control measures for treating infectious source were well implemented.
疟疾防治工作重点人群为农民，以青壮年及老年人为主。针对治疗传染源的抗疟措施执行情况较好。
Animals seem to be the main source of new infectious disease in man: in general around 60% of human pathogens are transmissible from animals; among new diseases, the rate is about 75%.
动物似乎是人类传染性疾病的主要来源体，通常60%人类的病原体来源于动物，而在新出现的疾病中，这一比例约在75%。
My sincere hope is that this new focus on design and usability becomes infectious and spreads to the entire open source community.
我由衷的希望这种对设计与易用性的重视能在整个开源社区内蔚然成风。
HIV-infected persons are highly infectious and is spread of AIDS, the most important source of infection.
艾滋病病毒感染者有很强的传染性，是传播艾滋病最重要的传染源。
SOURCE: Clinical Infectious Disease, September 1, 2009.
消息来源：临床感染疾病，2009年9月1日。
SOURCE: Clinical Infectious Disease, September 1, 2009.
消息来源：临床感染疾病，2009年9月1日。
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