Pampa-Espinoza, L. et al. 2021. First case of confirmed reinfection by SARS-CoV-2 in Peru. Revista Peruana de Medicina Experimental y Salud Pública. 38, 2 (Jun. 2021), 358–9. DOI:https://doi.org/10.17843/rpmesp.2021.382.7848.