What’s the most common way E.coli spreads?

Inadequate handwashing, rather than uncooked meat, appears to be the more common cause of the spread of antibiotic-resistant E.coli infections, a UK study suggests.
Researchers from the University of East Anglia did a genetic analysis of thousands of samples of extended-spectrum β-lactamase-producing Escherichia coli isolates (ESBL-E.coli).
They found that most E.coli infections in the UK were caused by a strain often found in the human gut and in sewage, but not seen much in the food supply.
That suggests the infection is primarily being spread as a result of human faecal particles transmitted from person to person, the study team writes in Lancet Infectious Diseases.