A number of Dole and President’s Choice brand salad products are being recalled due to possible Listeria contamination according to the Canadian Food Inspection Agency. All have best before dates of January 8th or 9th. The products were sold at stores across Canada. The food inspection agency says they should either be thrown out or taken back to where they were purchased. Vomiting, fever, muscle aches and severe headaches are some of the causes that can be brought on through Listeria contamination.