Volume 32, Number 1—January 2026
Research
Enhanced Isolation and Detection of COVID-19 in Hospitalized Patients Undergoing Antiviral Therapy
Figure 5

Figure 5. Efficiency and possible routes of infectious viral particle internalization of SARS-CoV-2 in Vero E6, Vero E6 T2, and Vero E6 A2T2 cell lines from study on the enhanced isolation and detection of COVID-19 in hospitalized patients undergoing antiviral therapy. Samples were separated by using sodium dodecyl sulfate–polyacrylamide gel electrophoresis and transferred to a polyvinylidene difluoride membrane for detection of ACE2, TMPRSS2, GAPDH (A) or SARS-CoV-2 spike and nucleocapsid antibodies (B). GAPDH, glyceraldehyde-3-phosphate dehydrogenase; ACE2, angiotensin-converting enzyme 2; del, deletion; TMPRSS2, transmembrane protease serine 2; Vero E6 T2, Vero E6 cells expressing TMPRSS2; Vero E6 A2T2, Vero E6 cells expressing both TMPRSS2 and ACE2.