Tiny specks of saliva sent into the air by coughs and sneezes carry the virus from a carrier to other people.

由咳嗽和打喷嚏带到空气中的唾液滴将病毒从携带者身上带到其他人中。

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In this paper, the structure of Ebola virus GP and VP30 and their functions in transcription are introduced. Its application on gene carrier is also discussed.

从分子生物学和免疫学的角度介绍埃博拉病毒蛋白，着重介绍GP和VP 30蛋白的结构及其在病毒转录过程中的作用机制，并对其在基因载体上的应用作出展望。

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As the liver tissue in the hepatitis B virus carrier has different degree injury, they get hepatitis of drug more easier.

由于乙型肝炎病毒携带者肝组织已存在不同程度的损害，比非乙型肝炎病毒感染者更容易发生药物性肝炎。

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The boy, who tested positive for the H7N9 virus, is considered a carrier of the strain and has been placed under observation to see if he develops symptoms, health authorities said.

NPR: A New Case In China Adds Unknowns To Bird Flu

Extensive ecological studies are underway in three African countries, including DR Congo, to try to find the "reservoir" - this work essentially involves checking for signs of the virus in thousands of different species of animal, in order to identify the carrier.

BBC: Africa's emerging virus threat