估计全世界约有7亿人因从事农业、家务和娱乐活动而可能接触受侵染的水，进而感染血吸虫病。

An estimated 700 million people worldwide may be at risk of infection as their agricultural, domestic and recreational activities expose them to infested water.

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报告说：“该村93户家庭的351名参加检测的对象尽管与怀疑感染H5N1的家禽有过经常、直接的接触，但无一人具有抑制H5N1病毒侵染的中和抗体。”

"Despite frequent direct contact with poultry suspected of having H5N1 infection, none of 351 participants from 93 households had neutralizing antibodies to H5N1, " the report says.

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经病原病毒的人工侵染等试验表明，AHZC 88细胞不受草鱼出血病病毒感染。

The infective test with the pathogenic virus of hemorrhage proved that the cell strain AHZC 88 was not infected with the hemorrhage virus.

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