Ex Vivo Detection of SARS-CoV-2 Spike Protein in Human Hair Follicles and Potential Link to Telogen Effluvium

    November 2025 in “ Scientific Reports ”
    Stefanie Klingenstein, Natalia Ruetalo, Peter Helmut Neckel … Moritz Klingenstein
    Studysummary In this study, researchers linked SARS-CoV-2 infection to telogen effluvium in some COVID-19 patients by observing the accumulation of viral proteins in hair follicle cells, which may trigger stress responses and cell death, suggesting hair follicles as a potential target in COVID-19.
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    Research cited in this study 25

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