‘Immunity passport’ (also called ''immunity certificate'' or ''immunity license'' has been suggested to certify traveler’ protection from SARS-CoV-2 infection. Some data have demonstrated development of neutralizing antibodies that may protect against reinfection and reduce disease severity in the short-term, and some tests correlate with virus neutralization. More evidence is needed on serologies for such certification to facilitate travel, to protect travelers and their destination countries.

中文翻译：

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COVID-19豁免护照可简化旅行限制？

建议使用“免疫护照”（也称为“免疫证书”或“免疫许可证”）来证明旅行者免受SARS-CoV-2感染的保护，一些数据表明已开发出中和抗体，可防止再感染和可以在短期内降低疾病的严重程度，并且一些测试与病毒中和有关，需要更多的血清学证据来证明这种认证，以便利旅行，保护旅行者及其目的地国家。