Malaria causes more deaths each year in Niger among children under five years of age than any other singleinfection.
疟疾每年在尼日尔5岁以下儿童中比任何其它单一感染造成更多死亡。
2
There was no significant difference between the fatality rate of patients with singleinfection of HBV and that of patients with multiple infection of HBV and other type hepatitis virus.
乙型肝炎病毒与其他肝炎病毒重叠感染与单纯感染比较死亡率无显著差异。
3
Mammalian cells make only the single-stranded variety. If a cell’s defence mechanisms detect double-stranded RNA they destroy it, to protect against infection.