Fig.1. Scanning electron microscope image of Campylobacter jejuni bacteria, a top cause of bacterial food-related gastrointestinal illness in the United States (Credit: De Wood, Pooley, USDA, 2008).
Every year, foodborne illnesses kill nearly 2 million people around the world. These illnesses are caused by harmful bacteria, viruses, parasites, or chemical substances and present a very real danger to food security and health care. Food safety is the topic of the World Health Organization’s (WHO) World Health Day, today on April 7, with the slogan "From farm to plate, make food safe." In an effort to promote food safety, the WHO released guidelines to prevent food contamination that can create a vicious cycle of disease and malnutrition.