This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio.
April 7 is World Health Day and food safety is the primary focus—and with good reason. The Centers for Disease Control and Prevention (CDC) estimate that, in the United States alone, every year there are 48 million foodborne illnesses and 3,000 deaths from unsafe food.
Most of these illnesses are the result of bacteria, such as Salmonella, that finds its way into various types of food. About half of all microbial foodborne illnesses are associated with animal foods, and about half from produce. CDC reports that most illnesses come from leafy greens, which could be contaminated on the farm, during processing, at retail or in the home. Chemicals, such as mercury in fish or mycotoxins from molds are also a concern.