Published in Medical Letter on the CDC and FDA, September 9th, 2007
"It is unknown if loss of the stx gene during the early stage of an enterohemorrhagic E. coli infection prevents HUS, or if absence of the stx gene from E. coli O157 reduces or ablates virulence. We determined the frequency of stx-positive and stx-negative E. coli O157 isolates in stool...
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