Bacterial infections are one cause of food borne illness. Nausea, vomiting, diarrhea, fever, chills, and abdominal pain are common symptoms of food poisoning. Campylobacter jejuni is a diarrheal illness often accompanied by cramps and fever. Clostridium botulinum is a potentially life-threatening bacterium that produces powerful neurotoxins. Escherichia coli is a diarrheal (often bloody) illness that may be accompanied by nausea, vomiting, fever, and abdominal cramps. Listeria monocytogenes causes fever, muscle aches, and diarrhea. Pregnant women, elderly individuals, infants, and those with weakened immune systems are most at risk for acquiring this infection. Salmonella causes fever, diarrhea, and abdominal cramps. Symptoms typically last between 4 and 7 days. Vibrio causes diarrhea when ingested, but it can also cause severe skin infections. Bacterial vaginosis, which causes an overgrowth of pathogenic bacteria in the vagina. Bacterial meningitis is a severe infection of the meninges, the lining of the brain.