COVID-19, SARS-CoV-2, sequence analysis, infections
community infectious disease monitoring, low-prevalence pathogens, pathogen screening, sewage treatment plants in Seoul, pathogen detection, public health
viral shedding; coronavirus disease 2019 (COVID-19); recurrent; severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Smallpox, vaccinia virus, smallpox vaccine, antibody titer, ELISA, bioterrorism
Mpox virus, Genomic deletions, Viral evolution, Human-to-human transmission, APOBEC3