Federal regulations permit the applicant/employee to request the split specimen that was collected at the time of the original specimen be sent to another laboratory for testing. This request should be made to the MRO within 72 hours of the employee being notified of the positive test result.
Shiga toxin-producing E. coli(STEC), also called verotoxinogenic E. coli, usually do not cause disease inanimals but may cause watery diarrhoea, haemorrhagic colitis, and/orhaemolytic uraemic syndrome in humans. Zoonotic STEC include the O157:H7strains and, with increasing frequency, certain non-O157 strains.
Some kinds of E. coli cause disease by making a toxin called Shiga toxin. The bacteria that make these toxins are called âShiga toxin-producingâ E. coli, or STEC for short. You might hear these bacteria called verocytotoxic E. coli (VTEC) or enterohemorrhagic E. coli (EHEC); these all refer generally to the same group of bacteria. The strain of Shiga toxin-producing E. coli O104:H4 that caused a large outbreak in Europe in 2011 was frequently referred to as EHEC. The most commonly identified STEC in North America is E. coli O157:H7 (often shortened to E. coli O157 or even just âO157â).