• Turk J Med Sci · Aug 2021

    First known COVID-19 case and contact tracing efforts in Istanbul, Turkey.

    • Abdullah Emre Güner, Aral Sürmeli, Kemal Kural, Esra Şahin, Perihan Alkan, Erdoğan Kocayiğit, Mustafa Hatipoğlu, Şuayip Birinci, Kemal Memişoğlu, and Işıl Maral.
    • Department of Public Health Services, İstanbul Health Directorate, İstanbul, Turkey
    • Turk J Med Sci. 2021 Aug 30; 51 (4): 1653-1658.

    Background/AimCOVID-19 has now become a global pandemic. Understanding the routes of transmission is vital in the mitigation and suppression of the disease. İstanbul has become one of the disease’s epicenters. This study aims to describe the first COVID-19 case and contact tracing efforts around it in İstanbul.Materials And MethodsThe descriptive study was conducted in İstanbul, Turkey. The first COVID-19 cases and those associated with them were investigated with contact tracing, and primary and secondary cases were described.ResultsThe source case was an individual who returned to Turkey from international travel at the beginning of March and tested PCR (–). The index case is the brother of the source case and is considered the first PCR (+) case diagnosed in İstanbul. Contact tracing revealed 23 PCR (+) cases, 14 of which resulted in hospitalization and three deaths.ConclusionsThis study described cases of the first COVID-19 cluster in İstanbul. Moreover, contact tracing was used in this first cluster. This contributed to contact tracing algorithms in Turkey.This work is licensed under a Creative Commons Attribution 4.0 International License.

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