虽然疾病加重期的气道细菌浓度高于稳定期，但是，以前的研究均为横断面研究，且缺乏菌株分型。

Bacterial concentrations are higher during exacerbation than during stable disease; however, these studies are cross sectional and devoid of strain typing.

youdao

这些分子分型技术是对常规表型分型技术的补充和深入，使我们对所要研究的细菌有更加全面的了解。

These techniques are the supplementary and in-depth developed approaches of conventional phenotype typing methods by which we can gain a more comprehensive understanding of desired bacteria.

youdao

结论RAPD技术是细菌基因分型及分子流行病学研究的好方法，在调查监控医院感染流行株方面有重要的临床意义。

CONCLUSIONS RAPD method is a useful tool in molecular epidemiology and bacterial gene typing which survey on epidemic strains of nosocomial infection.

youdao