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.
Analysis is done for the same parameters as used in Fig 3. With a weak collective immune strength, variability in the contact structure and individual immune strength causes wide fluctuations in the time course of infection events. The histogram is constructed out of 10,000 sample simulations.
