Salmonella was second, but there was decline in the most common strain, called Salmonella typhimurium. It's thought the dropoff could be due to a new poultry vaccine for Salmonella typhimurium, Geissler said. Geissler gave the example of the 2008-2009 Salmonella typhimurium outbreak that was traced to contaminated peanut butter. More than 700 people were infected, including one person who brought tainted food into Canada. The food scientist said some people are concerned that culture-independent test results can be interpreted in an overly cautious way.

Source: CBC News April 22, 2017 12:12 UTC