What fruit is most likely the source of an Escherichia coli outbreak in a day camp?

Raspberries are often associated with foodborne illness outbreaks, including those caused by strains of Escherichia coli. This can be attributed to several factors. Raspberries are typically eaten raw and are more likely to be contaminated by pathogens either during growth or processing.

The soft and delicate nature of this fruit makes it challenging to wash thoroughly, increasing the risk of any present bacteria not being removed before consumption. Moreover, raspberries are often grown in environments where they can come into contact with contaminated water or soil. Given these points, if there were to be an outbreak, raspberries would be a more probable source compared to apples, oranges, or bananas, which are usually safer as they have more robust skins or protective layers that reduce the likelihood of contamination.