看到國外的報紙覺得很妙，總之轉一下

No good, Bob

世界衛生組織警告可能造成COVID-19傳播更快的 XE 變種株（Omicron 的 BA.1 和 BA.2 的重組菌株）。
迄今為止有三種較多人知道的重組病毒，分別為XD、XF（由Delta的基因與Omicron的BA.1變種組合），又稱Deltacron，第三種則為XE。
世界衛生組織表示，初步調查結果顯示，XE比BA.2(目前主流)的傳播速率高10%，目前仍在搜集更多實證資料來證實。
<<外交部駐越南整理的每日越南疫情時翻譯的

Two are a combination of Delta and BA.1 (XD and XF). XD, which has an Omicron S gene incorporated into a Delta genome, requires biological characterisation. It is present in several European countries but has not been detected in the UK. XF caused a small cluster in the UK but has not been detected since 15 February.
這是英國的說法

XE is a BA.1/BA.2 recombinant, with the majority of the genome including the S gene belonging to BA.2. XE shows evidence of community transmission within England, although it is currently <1% of total sequenced cases.

Early growth rates for XE were not significantly different from BA.2, but using the most recent data up to 16 March 2022, XE has a growth rate 9.8% above that of BA.2. As this estimate has not remained consistent as new data have been added, it cannot yet be interpreted as an estimate of growth advantage for the recombinant.
英國的說法

我覺得很妙的是Deltacron似乎不是正式稱呼但是還不少外國媒體會用