They advise throwing out the onions if there is no way to tell whether they came from the manufacturer.
All surfaces that might have come into contact with onions or their packaging, such as countertops, refrigerator drawers, knives and cutting boards, should be washed and sanitized.
A recall on red, white, yellow and sweet onions from Thompson International has been issued, reported CNN. An additional 114 people have become ill in Canada, according to the Canadian Food Inspection Agency. The CFIA is conducting a food safety investigation, which may lead to the recall of other products.
Most people recover without treatment, according to the agency, however, children younger than five and adults over 65, as well as those with weakened immune systems, are more likely to have a severe illness.
The BCCDC says that anyone experiencing symptoms should contact their health care provider. The CDC estimates that about 450 persons in the United States die each year from acute salmonellosis.