Shiga toxin-producing e.coli is one of the most common forms of escherichia coli bacteria. This form of infection can affect people of any age. However, children and the elderly are more likely to develop severe illnesses due to this infection.
STEC are found in the digestive tracts of ruminant species such as cows, sheep, goats, elk, and deer. Cattle are a major source of illnesses in humans. STEC that affects humans does not affect animals. It can occasionally be taken from the environment and spread by other animals, such as birds and pigs.