E. Coli 0157:H7 (cont.)
Charles Patrick Davis, MD, PhD
Charles Patrick Davis, MD, PhD
Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.
In this Article
25 symptoms of E. coli 0157:H7 infection
Early symptoms of E. coli O157:H7 infection
The early or initial symptoms of E. coli O157:H7 infections usually appear about three to five (though occasionally in as few as one day or as many as 10 days) after a person ingests the bacteria; the symptoms include:
These symptoms can be seen in infected children and adults.
Later symptoms E. coli O157:H7 infections
The majority of people (especially normal adults) that are infected resolve the infection without antibiotics in about five to seven days. However, some people (about 10% of people infected and especially children under the age of 5 and the elderly) develop more severe signs and symptoms, and these people usually require hospitalization and aggressive treatment. These patients develop the usual early symptoms listed above, but do not resolve the infection. They develop symptoms that last longer (at least a week) and, if not treated promptly, the infection may lead to disability or death.
Later or late symptoms of E. coli infections may include some of the following symptoms:
These symptoms or complications fall into three main categories:
For most people (about 90%), the E. coli 0157:H7 infection clears and a good outcome or prognosis occurs. However, if any of the above mentioned complications occur, the prognosis may range from good to poor. The variable prognosis depends on the severity of the complication, the rapidity of diagnosis and treatment, the response of the individual to adequate treatment and the overall health of the individual. Children and the elderly are at higher risk for adverse outcomes.
Strains of E. coli 0157:H7 are mainly known to produce gastrointestinal symptoms; there are only a few reports of such strains causing urinary tract infections.
Medically Reviewed by a Doctor on 12/3/2015
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