Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
The Research Center for Global Virus Diseases, National Center for Global Health and Medicine Research Institute, Tokyo, Japan.
mSphere. 2023 Feb 21;8(1):e0041122. doi: 10.1128/msphere.00411-22. Epub 2023 Jan 10.
Although it has been 2.5 years since the coronavirus disease 2019 (COVID-19) pandemic began, the transmissibility of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from a dead infected body remains unclear, and in Japan, bereaved family members are often not allowed to view in person a loved one who has died from COVID-19. In this study, we analyzed the possibility of SARS-CoV-2 transmission from a dead body using a hamster model. We also analyzed the effect of "angel care"--in which the pharynx, nostrils, and rectum are plugged--and embalming on reducing transmissibility from dead bodies. We found that SARS-CoV-2 could be transmitted from the bodies of animals that had died within a few days of infection; however, angel care and embalming were effective in preventing transmission from the dead bodies. These results suggest that protection from infection is essential when in contact with a SARS-CoV-2-infected dead body and that sealing the cavities of a dead body is an important infection control step if embalming is not performed. We found that SARS-CoV-2 could be transmitted from a dead body, presumably via postmortem gases. However, we also found that postmortem care, such as plugging the pharynx, nostrils, and rectum or embalming the corpse, could prevent transmission from the dead body. These results indicate that protection from infection is essential when handling infected corpses and that appropriate care of SARS-CoV-2-infected corpses is important.
虽然冠状病毒病 2019(COVID-19)大流行已经过去了 2.5 年,但 SARS-CoV-2 从死亡感染者遗体传播的传染性仍不清楚,在日本,通常不允许死者家属亲自查看因 COVID-19 而去世的亲人。在这项研究中,我们使用仓鼠模型分析了 SARS-CoV-2 从尸体传播的可能性。我们还分析了“天使关怀”(堵塞咽喉、鼻腔和直肠)和防腐处理对降低尸体传染性的影响。我们发现,SARS-CoV-2 可以从感染后几天内死亡的动物尸体传播;然而,天使关怀和防腐处理可以有效阻止尸体传播。这些结果表明,与 SARS-CoV-2 感染的尸体接触时必须采取防护措施,如果不进行防腐处理,密封尸体腔隙是重要的感染控制步骤。我们发现 SARS-CoV-2 可以从尸体传播,可能是通过死后气体。然而,我们还发现,死后护理,如堵塞咽喉、鼻腔和直肠或对尸体进行防腐处理,可以防止尸体传播。这些结果表明,处理感染尸体时必须采取防护措施,对 SARS-CoV-2 感染的尸体进行适当的护理非常重要。