Ahmed A, Sana F, Ikram A, Yousaf S, Khan A
Department of Pathology, Combined Military Hospital Malir, Karachi, Pakistan.
National Institute of Health, Islamabad, Pakistan.
New Microbes New Infect. 2021 Jul;42:100896. doi: 10.1016/j.nmni.2021.100896. Epub 2021 May 8.
During an ongoing pandemic of severe acute respiratory syndrome coronavirus 2, main question which has arisen in everyone's mind is about the immune response that may protect from reinfection. Coronaviruses are known for short-term immunity. Their ability of mutations enables them to escape host immunity, thus increasing chances of reinfection. Here we report two cases of reinfection among health care workers who presented with symptoms of COVID-19 disease, after 3 months of first infectious course. Such documentations are necessary for epidemiological purposes and also to monitor response of virus on re-exposure.
在严重急性呼吸综合征冠状病毒2持续大流行期间，每个人心中出现的主要问题是关于可能预防再次感染的免疫反应。冠状病毒以短期免疫而闻名。它们的突变能力使它们能够逃避宿主免疫，从而增加再次感染的机会。在此，我们报告两例医护人员再次感染的病例，他们在首次感染病程3个月后出现了新冠肺炎疾病症状。此类记录对于流行病学目的以及监测病毒再次暴露后的反应是必要的。
