Author: Alicia Maroney

Foodborne illness investigations often focus public attention on a single restaurant, manufacturer, or food product. While identifying the immediate source of contamination is essential for protecting consumers, doing so can sometimes obscure a broader public health problem. The current increase in Cyclospora cayetanensisinfections illustrates this challenge. Although investigators have identified one confirmed outbreak associated with shredded iceberg lettuce supplied to Taco Bell restaurants, the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) have made clear that this cluster does not explain all reported illnesses. Numerous additional cases remain under investigation, suggesting that multiple contamination events may…

Fresh produce occupies a unique position in modern nutrition and food safety. Public health agencies consistently encourage increased consumption of fruits and vegetables because they reduce the risk of cardiovascular disease, diabetes, obesity, certain cancers, and numerous chronic illnesses. At the same time, however, fresh produce has become one of the leading vehicles for foodborne disease outbreaks in the United States and around the world. Over the past two decades, the Centers for Disease Control and Prevention (CDC), the Food and Drug Administration (FDA), and state health departments have investigated numerous outbreaks linked to lettuce, spinach, cucumbers, onions, cantaloupes, tomatoes,…

Few food products carry greater public responsibility than infant formula. Unlike most processed foods, infant formula is designed to sustain life during a period when the immune system remains immature and nutritional requirements are extraordinarily precise. For many infants, including those born prematurely, those with metabolic disorders, or those unable to breastfeed, formula is not merely a dietary choice but a medical necessity. This dependence creates exceptionally high expectations regarding product safety. Parents assume that every container of infant formula has undergone rigorous testing and can be safely consumed without hesitation. When contamination occurs, however, the consequences extend far beyond…

One Contaminated Ingredient, Many Victims: How a Single Food Component Can Trigger Widespread Foodborne Illness Across Multiple Products Foodborne illness investigations often begin with what appears to be a simple question: What food made people sick? Increasingly, however, investigators discover that the answer is not a single finished product but a single contaminated ingredient shared across numerous products. In today’s food system, ingredients move through extraordinarily complex supply chains before reaching consumers. A spice harvested in one country may be blended into sauces, snacks, frozen meals, and restaurant foods. An onion grown on a single farm may eventually appear in…

The Salmonella Newport Cantaloupe Outbreak (Ref #1366): How Investigators Traced the Contamination and What It Means for the Future of Imported Produce Fresh produce outbreaks have become one of the defining food safety challenges of the modern global food system. Fruits and vegetables once perceived primarily as healthy dietary staples are now frequently implicated in multistate outbreaks involving dangerous pathogens such as Salmonella, Listeria monocytogenes, Cyclospora, and shiga toxin–producing E. coli. Among these commodities, cantaloupe has emerged repeatedly as a high-risk produce item because of its surface structure, growing conditions, and distribution patterns. The outbreak of Salmonella Newport linked to…

Foodborne illness outbreaks associated with ready-to-eat foods occupy a uniquely dangerous category in public health because consumers often eat these products without reheating or additional preparation capable of killing harmful bacteria. Unlike raw poultry or uncooked ground beef, which consumers generally understand require cooking to safe temperatures, ready-to-eat deli products are marketed and consumed under the assumption that they are already safe. This assumption places extraordinary responsibility on food processors, regulators, and sanitation systems to prevent contamination after cooking has occurred. In May 2026, the United States Department of Agriculture’s Food Safety and Inspection Service (FSIS) issued a public health…

Modern international travel exposes individuals to microbial environments that differ dramatically from those encountered in their home countries. Although tourism campaigns often focus on cuisine as an essential cultural experience, food consumption abroad remains one of the most significant pathways for infectious disease transmission. Travelers frequently encounter unfamiliar pathogens, inconsistent sanitation standards, and food handling practices shaped by local infrastructure limitations rather than negligence alone. According to the Centers for Disease Control and Prevention (CDC), travelers’ diarrhea is the most predictable travel-related illness worldwide, affecting millions of people annually. However, the term “travelers’ diarrhea” often minimizes the seriousness of foodborne…

Preventing Foodborne Illness When Growing Your Own Produce Growing fruits and vegetables at home has long been associated with self-sufficiency, sustainability, and improved nutrition. The rise of backyard gardens, raised-bed cultivation, and urban container farming has made fresh produce more accessible to households across income levels. However, the perception that produce grown at home is naturally safer than store-bought produce often overlooks a critical reality: pathogens do not distinguish between commercial and domestic growing environments. Foodborne pathogens such as Salmonella enterica, Escherichia coli O157:H7, Listeria monocytogenes, and Campylobacter can contaminate produce through irrigation water, soil amendments, animal intrusion, and human…