Most travellers will experience symptoms for two to four days – these can also include abdominal pain, cramps, excess wind, nausea, fatigue, loss of appetite, vomiting, fever, and dehydration.
Very common is watery diarrhoea, sometimes accompanied by vomiting and fever below 39C. So, those suffering should replace lost fluids and electrolytes by drinking more liquids (sealed or purified beverages only). Oral rehydration salts (ORS) can help the body to rehydrate more quickly.
Supplementing the gut flora with BioGaia drops or tablets containing Limosilactobacillus reuteri Protectis could also help by rebalancing the microbiota, improving symptoms and speeding up recovery.