Massy Stores has withdrawn all types of romaine lettuce from their supermarket shelves, Saint Lucia Times has been reliably informed.
The action came as the United States Centres for Disease Control and Prevention (CDC) sent out a rare alert advising against consuming romaine lettuce in the second high-profile contamination this year.
There has been an outbreak of E. coli infections linked to romaine lettuce in the US and 18 confirmed cases in Canada.
US authorities are coordinating with the Public Health Agency of Canada in investigating the outbreak, according to reports.
People infected with E. coli can have a wide range of symptoms appear within one to 10 days after contact with the bacteria.
These symptoms include: nausea, vomiting, headache, mild fever, severe stomach cramps and watery or bloody diarrhoea.
Although some persons may not get sick at all, they can still spread the infection to others.