Fig. 5

Effects on the neutralization of St19pv infection by serum or whole blood from COVID-19 hospitalized patients. The pseudotyped viruses were preincubated with two hundred dilutions of serum or whole blood from seven different COVID-19 hospitalized patients (patients #6, #7, #12, #20, #21, #22, and #23) with culture media. Thereafter, Vero cells were infected with pseudotyped viruses. Infectivities of pseudotyped viruses were determined by measuring luciferase activities 24 h post-infection. The results are from three independent assays with error bars representing standard deviations