aCentral Disease Control Headquarters, Korea Centers for Disease Control and Prevention, Cheongju, Korea
bInfectious Disease Management Division, Gyeonggi Provincial Office, Suwon, Korea
cHealth Administration Department, Gunpo Health Center, Gunpo, Korea
dDirector of Public Health Center, Guro-gu Health Center, Seoul, Korea
eRegional Health Department, Guro-gu Health Center, Seoul, Korea
fHealth Administration Department, Guro-gu Health Center, Seoul, Korea
Copyright ©2020, Korea Centers for Disease Control and Prevention
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).