• Ayşegül Karahasan, SarınoğluRabia CanRCDepartment of Medical Microbiology, Faculty of Medicine, Marmara University, İstanbul, Turkey., Barış Can, Hüseyin Bilgin, Nuri Çagatay Çimsit, and Volkan Korten.
• Department of Medical Microbiology, Faculty of Medicine, Marmara University, İstanbul, Turkey.
• Turk J Med Sci. 2021 Oct 1; 51 (5): 279527972795-2797.

BackgroundTo the Editor, Serology may offer valuable information during COVID-19 pandemic; however, published papers mainly reported the results of symptomatic patients having positive RT-PCR on upper respiratory tract specimens [1]. More studies are needed to address whether asymptomatic patients, or patients with chest imaging compatible with COVID-19 but negative RT-PCR, have different antibody response that could influence assays performances. We wanted to share our data from Turkey where 4,323,596 COVID-19 cases were detected out of 44,087,628 PCR tests by April 20, 2021 but there are only a couple of published studies about serodiagnosis of the infection.DiscussionThe authors have no funding source for the study. The authors have no conflicts of interest to declare.

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