#武肺病毒
現在新聞上大家應該都有印象，聽到過諸如BA.1, BA.2, XE一類的病毒變種。
這些名稱籠統地說，都可以當成Omicron 的變種。BA.1和BA.2都是Omicron 的下屬變種，兩者基因組上只有很少的分別。而其他諸如XE，XR等則是BA.1和BA.2之間的重組病毒，也就是BA.1和BA.2在基因組上不同的部份，按不同比例重組出來的一個完整病毒。當然除了Omicron的下屬變種外，也出現了Omicron和Delta的重組病毒，如delta和BA.1重組出了XD和XF.（亦即是所謂deltacron)
但當然，雖然現有數據證明這些變種可能會影響其傳染性，如XE的傳染性可能高出Omicron 一成，但數據依然未夠全面，不同變種的表現依然在觀察中。
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Yes! Voice calls are currently available to users around the world.
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