What type of toxin is produced by certain strains of E. coli?

Shiga toxin is produced by certain strains of E. coli, particularly the Enterohemorrhagic E. coli (EHEC), which includes the infamous strain O157:H7. This toxin inhibits protein synthesis in the host's cells, leading to severe illness, including bloody diarrhea and can lead to complications such as hemolytic uremic syndrome (HUS). Shiga toxin disrupts cellular processes, making it particularly dangerous and a key factor in the pathogenicity of these strains.

Other toxins like Botulinum toxin, Cholera toxin, and Staphylococcal enterotoxin are associated with different organisms and play roles in other types of foodborne illnesses or infections. Therefore, while they are significant in their own right, they are unrelated to the strains of E. coli that produce Shiga toxin. Understanding the specific toxins produced by various microorganisms is crucial for identifying the source of infections and determining appropriate public health responses.