Zapata-Cardona M, Flórez-Álvarez L, Gómez-Gallego D, Moncada-Díaz M, Hernandez J, Díaz F, Rugeles M, Aguilar-Jiménez W, Zapata W. Comparison among plaque assay, tissue culture infectious dose (TCID50) and real-time RT-PCR for SARS-CoV-2 variants quantification. Iran J Microbiol. 2022;14(3):291-299.