Problem: Foodborne illness can come from a variety of sources. Most commonly implicated are bacteria, viruses, parasites, and toxins. Less common examples include fungi, prions, and chemical residues. Choose the statement below that correctly describes microorganisms and other agents involved in foodborne illness. Parasites obtain some benefit from their host, but do not cause harm to the host. Norovirus, sometimes known as "stomach flu," is a strain of influenza that affects the gastrointestinal tract. Viruses are independent cells. Bacterial toxins produced by species like Clostridium botulinum can cause paralysis. Need Assignment Help?