Salmonella Infection During Pregnancy: Symptoms, Risks and PreventionSalmonella infection during pregnancy can cause diarrhoea, fever, abdominal cramps, nausea, and vomiting. Most pregnant women recover with adequate fluids, oral rehydration, rest, and light food. However, severe dehydration or infection spreading into the bloodstream can cause complications. Good food hygiene can help you reduce your risk of infection.