The majority of human cases of H5N1 infection have been associated with direct or indirect contact with infected live or dead poultry.

大多数H5N1人类感染病例均与直接或间接接触染病或病死禽类相关。

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In the prevention, it is important to avoid cross infection between husband and wife, as well as the spread of indirect goods and mother to child transmission.

在对预防中，就要避免夫妻间的交叉感染、以及一些间接物品的传播和母婴传播都是很重要的方式。

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The number of hospitalization days, nosocomial infection frequences and areas, hospital medical costs, direct non-medical costs and indirect costs were observed.

追踪观察两组患儿的住院天数、医院感染次数及部位、住院医疗费用、直接非医疗费用和间接费用等。

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The researchers suggest that these fluctuations may have direct effects on airways. and indirect effects on inflammatory responses to infection.

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The primary risk factor for human infection appears to be direct or indirect exposure to infected live or dead poultry or contaminated environments.

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