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(A) Preparation for immunostaining with anti-TMPRSS2 antibody from skin samples of SARS-CoV-2-positive patients. Note the negativity of the immunolabeling of the epidermal keratinocytes (Immunohistochemistry anti-TMPRSS2, original magnification: 4×). (B) Detail of image A showing negativity of the TMPRSS2 immunolabeling of some adenomeres of eccrine sweat glands. (Immunohistochemistry anti-TMPRSS2, original magnification: 20×).
