▌张伯礼：免疫功能正常的人群，短时间内再次感染风险较小
中国工程院院士张伯礼在接受采访时表示，二次感染新冠病毒的概率主要与人体免疫水平、病毒株变异，以及后期个人防护有关。目前XBB毒株和我国流行的BA.5有所差异，随着感染BA.5后一段时间，人体免疫水平下降，遇到免疫逃逸能力强的新毒株，再感染的风险会一定程度增加。
Risks of reinfection of the highly immune-evasive XBB will rise after a period since the infection of the more prevalent BA.5 in China, said Zhang Boli, an academician with the Chinese Academy of Engineering and an expert in Traditional Chinese Medicine.
Zhang said the chances are low for such reinfections to strike within three to six months after the initial infection of other members of the novel coronavirus family, citing clinical observations.
Wang Xinyu, deputy director of the infectious disease department of the Shanghai-based Huashan Hospital of Fudan University, said people who have just recovered have a pretty high level of antibodies. They are less likely to be infected by the XBB variant. Therefore, it is unlikely for the XBB to bring a new peak in infection in the short term.
来源：新华社
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