attenuated infection 中文意思是什麼
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Prevention and cure of the derzsy ' s disease depended on vaccine and antiserum, antibodies of eggs. the vaccines includes goose embryo and duck embryo vaccines which were used 1n breed goose and goslings, and those vaccines have great effect in breeding goose, but the entire virion live vaccines and attenuated vaccines exist many deficiencies. such as preclinical infection, dissemination of virus, recovery of viru5, etc. those proplems can be sol / ed by producing genetic engineering " asclne
目前使用的疫苗分為種鵝用和雛鵝用的鵝胚和鴨胚化疫苗，這些疫苗在實際生產中發揮巨大作用，因其為全毒苗或弱毒苗，存在著潛伏感染，排毒散毒，毒力返祖的缺陷，基因工程疫苗的研製可解決上述問題。 -
The present research is aimed to investigate the mechanism of inhibition to hosts " photosynthesis by tumv infection and to prevent cmv infection by attenuated strains
本研究的內容包括對tumv抑制寄主植物光合作用的機理和cmv的弱病毒防治研究兩部分。
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