publicaciones seleccionadas artículo académico Deciphering the introduction and transmission of sars-cov-2 in the colombian amazon basin 2021-4-1 Robust clinical detection of SARS-CoV-2 variants by RT-PCR/MALDI-TOF multitarget approach 2021-1-1 SARS-CoV-2 spread across the Colombian-Venezuelan border 2020-11-4