Three friends who ate a sausage pizza together fell ill with yersiniosis. it was later determined that the sausage had been time-temperature abused. this is an example of

This is a foodborne illness outbreak. This is caused by the improper storage, handling, or serving of the food (s) in question. What might be considered a minor transgression at the time may lead to a major outbreak of life-threatening illnesses further down the line, depending on the bacteria involved.