• Medicina · Jan 2024

    Characteristics of endemic human coronavirus infections during times of COVID-19 pandemic.

    • Eric E Crocci, Delfina Schreiner, Emilia A García, Esteban C Nannini, Manuela Cobos, Paula Doubik, Juan P Balbuena, Agustin Romandetta, Bettina Cooke, María F Alzogaray, Elsa Baumeister, and Analia Mykietiuk.
    • Grupo Sur, Instituto Médico Platense, La Plata, Buenos Aires, Argentina.
    • Medicina (B Aires). 2024 Jan 1; 84 (1): 102107102-107.

    IntroductionAfter the implementation of mitigation strategies during the COVID-19 pandemic, the incidence of respiratory viruses, including human coronaviruses (HCoV), experienced a significant decrease. The aim of this study is to characterize the epidemiology and clinical aspects of HCoV infections in ambulatory adults during COVID-19 pandemic times.Methodsdescriptive, prospective, longitudinal study performed in a private hospital in La Plata, Buenos Aires, Argentina between November 2020 and October 2022; 458 outpatient adults with upper respiratory tract infections (URTI) were studied undergoing clinical and microbiological follow-up.Results44 (9.6%) subjects were positive by multiplex PCR for HCoV. 14 of them for 229E (31.8%), 13 for OC43 (29.5%), 11 for HKU-1 (25.1%) and 6 for NL63 (13.6%). A repeated PCR was positive for the same HCoV in 19 (57%) of 33 patients on day 3-5. No hospitalizations or deaths were reported.DiscussionEndemic HCoV caused a significant proportion of URTI among outpatient adults during COVID-19-related restrictions times. An alternating pattern of circulation between alfa-HCoV and beta-HCoV was observed.

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