Along with its adeptness at getting around immune blockades, XBB.1.5 appears to be highly transmissible, thanks to some key mutations picked up as the virus evolved.

XBB还擅长绕过免疫系统的封锁。由于病毒进化过程中出现了一些关键的突变，XBB.1.5似乎具有高度传染性。