EnteroINVASIVE Escherichia coli is primarily transmitted through which method?

Entero-invasive Escherichia coli (EIEC) is primarily transmitted through an infected food handler, which is the correct answer. This type of E. coli is known to cause gastrointestinal illness by invading the intestinal mucosa and causing inflammation. Food handling practices are crucial because if an infected individual does not follow proper hygiene protocols, such as handwashing after using the restroom, they can contaminate food products, leading to the spread of the bacteria.

Additionally, while EIEC can be present in various environments, its transmission via an infected food handler is significant as these individuals can easily spread the bacteria through direct contact with food items or kitchen surfaces. Contaminated food is a well-recognized pathway for transmitting foodborne pathogens, making food handlers a focal point in preventing outbreaks. By understanding this transmission route, proper food safety protocols can be emphasized to minimize risks in food service operations.

Contaminated water and undercooked meats are more commonly associated with other strains of E. coli or different pathogens. Inhalation of aerosols is not a recognized transmission route for EIEC, which typically requires ingestion for infection to occur. Therefore, knowing the critical role of food handlers helps prioritize training and hygiene measures to reduce foodborne illness caused by E