Primary infectionsource may be reduced by breeding and selecting the variety with the lower infected seedling rate of seed-borne SMV.
可以通过选育和筛选种传病苗率低的品种推广,减少本病的初次侵染来源。
2
The results of investigation on parasitology, entomology and social factors showed that imported malaria is the infectionsource of the outbreak.
从寄生虫学、昆虫学和社会因素的调查结果表明,输入性疟疾是引起本次暴发流行的传染来源。
3
RESULTS & CONCLUSION: The key to reduce the incidence of infection in the preparation and application of TPN is to keep the infectionsource under control.