Nausea is the first and most common symptom of salmonella infection. The body starts fighting infections as soon as it identifies harmful bacteria. Stomach acid production increases to kill the bacteria. The immune system sends phagocytes to attack the invading bacteria as well. These processes occur in the stomach and digestive tract and cause nausea.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.