The Big Six Food pathogens are:

According to the Food and Drug Administration (FDA), there are over 40 different kinds of viruses, bacteria, parasites, and molds that can cause foodborne illnesses. They have, however, identified the Big Six 6 as they are highly contagious and cause severe illnesses. The Big Six Food are; Shigella spp., Salmonella Typhi, Nontyphoidal Salmonella (NTS), E. coli, Hepatitis A & Norovirus