Some E. coli produce Shiga toxins also called verotoxins or Verocytotoxins. These E. coli are designated Shiga toxin-producing or Verotoxin-producing E. coli (STEC or VTEC). A subgroup of VTEC,capable of causing serious disease like enterohaemorrhagic colitis
A large variety of processes for production of fermented sausages exist. Sausages are made by mixing minced meat and fat with herbs,spices, salt, sugar, sodium nitrite and starter culture. The starter culture is usually a single species of lactic acid bacteria (LAB) or a LAB mixed with other bacteria. The mix is stuffed into casings and subjected to a fermenting step where LAB grow and produce lactic acid