how long until symptoms of salmonella appear
Symptoms of salmonella usually start from 12 to 72 hours after the bacteria has been swallowed. The symptoms include abdominal cramps, headache, fever, and severe watery diarrhea.Nausea and vomiting may also occur. People infected with salmonella can have milder or no symptoms.ymptoms of salmonella usually start from 12 to 72 hours after the bacteria has been swallowed. The symptoms include abdominal cramps, headache, fever, and severe watery diarrhea. Nausea and vomiting may also occur.