It is necessary to drop the infection efficiency by over 85% through protection measures for reducing the basicreproductionrate below the critical level.
防护措施必须使感染效率下降85 %以上，才能使医院内传播的基本繁殖率降至临界值以下。
2
All parameters in the important concept-basicreproductionrate provide science evidence for malaria epidemiologic research and disease control and prevention.
其基本繁殖率这一重要概念中的各项参数，为疟疾的流行病学调查和制订预防、控制措施提供了依据。
3
Under the guidance of basicreproduction number, the negative effect can be alleviated and worms can be terminated by introducing a anti-virus system of high initial installation rate.