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''According to data from the Global Initiative for Sharing Influenza Data (#GISAID), as of December 31, 2022, #XBB15 has been detected in at least 74 #countries and regions around the world. The #XBB substrain has also been introduced into #China'', SINA: https://news.sina.com.cn/s/2023-01-03/doc-imxywnct5913193.shtml
news.sina.com.cn逃逸能力更强的XBB.1.5会引发新一波感染高峰吗？逃逸能力更强的XBB.1.5会引发新一波感染高峰吗？
''It is worth noting that #XBB is not a virus mutation, but a #recombinant strain of two #BA2 lineages, #BA2101 and #BA275. In contrast, the previous major epidemic strains in the United States, BQ.1 and BQ.1.1, both evolved from BA.5.''