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.
Colors are related to states, BN = Borno, KB = Kebbi, KN = Kano, YB = Yobe, JG = Jigawa, KT = Katsina, NG and FR refer to Nigeria and France samples respectively without more information (see also S1 Material).
