What are the symptoms of E.coli O157 , and how long do they last?
People infected with E.coli O157 can have one, some, or all of the following symptoms: • diarrhoea – about 50% of people also have blood in their stools • stomach cramps • fever Some infected people may have mild diarrhoea or no symptoms at all. A very small number of patients may develop ‘haemolytic uraemic syndrome’ (HUS) which is associated with kidney failure, anaemia, and bleeding. Complications are more common in children under five years of age and the elderly. On average, it takes three to four days for symptoms to develop after swallowing an infectious dose of E. coli O157. Symptoms can last up to two weeks, except in cases with complications. Most people get rid of the bacteria after about one week although children may continue to carry it for longer periods.
