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J Virol 猪流行性腹泻病毒新型二价亚单位疫苗研制取得新进展
PEDV属于冠状病毒属,基因容易发生变异,目前已演化出多种不同的基因亚型,临床上各种亚型毒株混合感染严重。其中G2a和G2b亚型是临床上危害最严重的两种变异亚型毒株,但对这两种亚型毒株间的交叉免疫保护了解并不全面,而且目前尚无同时对这两种亚型毒 ...
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