Over the last 25 years, modernization has overrun the food safety landscape in previously unimaginable ways. Environmental and finished-product sampling programs are undoubtedly among the most important aspects of the industry’s success. These programs not only enhance the likelihood of preventing the release of contaminated products but, perhaps more important, they teach us a lot about our programs, our suppliers, our processing environment and the pathogens we fight against.
Yet, despite the success, recalls continue to occur with increasing frequency. Moreover, these recalls can be more damaging than in the past because of an emerging shift: a new recall model. In the past, recalls were typically confined to products produced during narrow, well-defined,periods of time. That is no longer the case. Instead, enhanced regulatory sampling capabilities show recalls increasingly involve weeks, months or even years of production. The new tools used by investigators allow for the detection of low-intensity outbreaks responsible for intermittent illnesses occurring over long periods of time. Such outbreaks are often caused by niche organisms that persist in dark, difficult to reach parts of facilities or equipment. In addition, databases such as Pulsenet and GenomeTrakr, which contain millions of isolates, allow regulators to instantly identify matches between positive samples and illnesses that occurred years ago.