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.
An example social contact network: (a) the bipartite graph representation showing people visiting locations; (b) the temporal and spatial projection of the network; (c) the person-person graph showing interactions between temporally and spatially co-located people; (d) potential disease transmission between an infectious person 2, and susceptible people 1 and 3.
