Mice are infected by mouse hepatitis virus, the rati o is 100%before cesarotomy.After having been cleaned, the mouse hepatitis viru s in closing colony mice has kept negative for 5 year.
英
美
- 剖腹產(chǎn)術(shù)前100%25感染小鼠肝炎病毒的小鼠種群，經(jīng)無(wú)菌剖腹產(chǎn)術(shù)凈化后，結果均為陰性，并經(jīng)5年的大規模生產(chǎn)、繁殖，至今仍保持陰性結果。
