Infection with<unk>  can cause profuse, watery diarrhea with no blood or leukocytes and abdominal cramping. Fever, nausea with or without vomiting, chills, loss of appetite, headache, muscle aches and bloating can also occur, but are less common.
Enterotoxigenic Escherichia coli
Enteroaggregative Escherichia coli
Enteroinvasive Escherichia coli
Escherichia coli O157:H7
Salmonella
Clostridioides difficile 
Shigella
Yersinia enterocolitica