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.
Kaplan-Meier curves representing time to death from challenge and mortality data for each group. The time to death from challenge and mortality data for both challenged groups are shown. Solid line, group challenged with B. anthracis and then treated with antibody when ECL positive; dotted line, group challenged with B. anthracis and untreated.
