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.
Effect of E. coli culture supernatants on Stx toxicity to Vero cells. Purified Stx1 or Stx2 was added to culture supernatants to a final concentration of 100 or 250 ng per ml and incubated for 30 min. Vero cells were added and incubated for 3 days. Results are the averages of three trials. An asterisk denotes statistical significance (P < 0.05) compared to the LB medium control.
