來源:健康中國 | 2022-12-29 13:13:56 |
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健康中國
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.中國疾控中心病毒病所所長 許文波
.根據(jù)實(shí)時(shí)動(dòng)態(tài)監(jiān)測,國內(nèi)沒有發(fā)現(xiàn)德爾塔變異株在流行,也沒有發(fā)現(xiàn)德爾塔變異株與奧密克戎變異株重組。從12月初至今,國內(nèi)監(jiān)測到9個(gè)流行的新冠病毒亞分支,都屬于奧密克戎變異株。
.從12月初至今,中國疾控中心通過抽樣調(diào)查,完成了1142個(gè)病例的全基因組測序,發(fā)現(xiàn)奧密克戎變異株亞分支BA.5.2和BF.7占全國流行的絕對(duì)優(yōu)勢,兩者合計(jì)超過80%。此外,還有7個(gè)奧密克戎變異株亞分支也在流行。
.許文波介紹,這些亞分支中沒有發(fā)現(xiàn)特征性的基因組突變,都是境外輸入而來。12月共發(fā)現(xiàn)31個(gè)奧密克戎變異株亞分支輸入國內(nèi),其中也包括正在國外加速傳播的BQ.1、XBB等亞分支。
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