Liquid‐based cytological and immunohistochemical study of nasopharyngeal swab from persons under investigation for SARS‐CoV‐2 infection

Autor: Josep Gumà, Karla B. Peña, Francesc Riu, David Parada, Carmen Guilarte
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Histopathology
ISSN: 1365-2559
0309-0167
DOI: 10.1111/his.14257
Popis: INTRODUCTION: We describe cytologic and immunohistologic findings in virus transport medium on cases under investigation of SARS-CoV-2 infection. METHODS: Cytologic findings in cases under investigation of SARS-CoV-2 infection from one hundred consecutive nasopharyngeal swab were reviewed. Immunohistochemistry and SARSCoV-2 RT-PCR determination were performed to detect virus. RESULTS: No viral inclusions were noted in squamous cells obtained from virus transport medium. Immunohistochemical study with monoclonal antibody against SARS-CoV-2 viral nucleoprotein showed positivity in squamous cells. No positivity was present in others cellular components. CONCLUSIONS: SARS-CoV-2 predominantly localizes squamous cells in cytology samples of patients with RT-PCR positive determination of SARSCoV-2. The results of the current study support the notion that the nasopharyngeal region is the anatomical station that SARS-CoV-2 infects first, and the infection can lead to the migration of the virus into the lower airways.
Databáze: OpenAIRE
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