RESUMEN

We report the rapid emergence of severe acute respiratory syndrome coronavirus 2 lineages B.1.619 and B.1.620 in South Korea. The surge in frequency in a relatively short time emphasizes the need for ongoing monitoring for new lineages to track potential increases in transmissibility and disease severity and reductions in vaccine efficacy.

Asunto(s)

COVID-19 , SARS-CoV-2 , Humanos , República de Corea/epidemiología , Eficacia de las Vacunas

RESUMEN

We evaluated genetic variation in Middle East respiratory syndrome coronavirus (MERS-CoV) imported to South Korea in 2018 using specimens from a patient and isolates from infected Caco-2 cells. The MERS-CoV strain in this study was genetically similar to a strain isolated in Riyadh, Saudi Arabia, in 2017.

Asunto(s)

Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/virología , Coronavirus del Síndrome Respiratorio de Oriente Medio/clasificación , Coronavirus del Síndrome Respiratorio de Oriente Medio/genética , Línea Celular , Infecciones por Coronavirus/historia , Brotes de Enfermedades , Historia del Siglo XXI , Humanos , Coronavirus del Síndrome Respiratorio de Oriente Medio/aislamiento & purificación , Filogenia , República de Corea/epidemiología , Glicoproteína de la Espiga del Coronavirus/genética