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.
Proportional distribution of hemolytic and nonhemolytic phenotypes within the different categories of isolates, in relation to the presence of at least one/or no virulence factor (stx1, stx2, eae). Values in parentheses are the total numbers of isolates investigated. (Note: One food isolate failed to grow on SHIBAM.)
