• Clin Med (Lond) · Jan 2021

    Case Reports

    A case of COVID-19 reinfection in the UK.

    • Jack West, Serenydd Everden, and Nikitas Nikitas.
    • University Hospitals Dorset NHS Foundation Trust, Bournemouth, UK jackwest@doctors.org.uk.
    • Clin Med (Lond). 2021 Jan 1; 21 (1): e52e53e52-e53.

    AbstractProtective immunity following COVID-19 infection is not yet fully understood. An understanding of COVID-19 reinfection will be key in guiding government and public health policy decisions in the coming months. This report describes two distinct infective episodes of COVID-19 occurring in the same individual, at the time of writing the first published case in the UK. In April 2020 a 25-year-old UK doctor exhibited classical COVID-19 symptoms, including fevers, headaches, and fatigue. A COVID-19 nucleic acid amplification test (NAAT) at the time returned negative. However, a follow-up antibody test in May 2020 returned positive. In October 2020 the same individual exhibited coryzal symptoms and headaches. He was COVID-19 NAAT tested and found to be positive. There was exposure to high viral load prior to reinfection. Overall the second infection was symptomatically milder, with a faster recovery. This evidence for reinfection poses challenges for public health and vaccination efforts to protect against the COVID-19 pandemic.© Royal College of Physicians 2021. All rights reserved.

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