Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Median time lags between the time points of surveillance. DOH, Department of Health (at the provincial level); HFRS, Hemorrhagic fever with renal syndrome; KCDC, Korea Centers for Disease Control and Prevention (at the central level); PHC, Public Health Centers (at the local level). See Figure 1 for definitions of T2, T3, and T4.
