Gastroenteritis is an intestinal infection marked by watery diarrhoea, abdominal cramps, nausea or vomiting, and sometimes fever. The most common way to develop viral gastroenteritis is by contact with an infected person or through contaminated food or water. The most common kind, caused by a virus, makes one feel sick for 12 to 48 hours and can last up to 3 days. Gastroenteritis usually resolves without any medical intervention. Treatment is focused on reducing the symptoms and preventing complications, especially dehydration. Depending on the cause, viral gastroenteritis symptoms may appear within one to three days after you’re infected and can range from mild to severe. Treatment strategies that may be employed include resting and replacing lost fluids and electrolytes by drinking plenty of liquids. Sports drinks can be included because they can help with electrolyte replacement. Certain teas, such as ginger and peppermint, can also help calm the stomach and alleviate nausea. Also ensuring fluid intake even if vomiting persists, by sipping small amounts of water or allowing ice cubes to melt in the mouth can be very effective. Gradually starting to eat again is another preventive strategy. No specific restrictions are recommended, but blander foods might be easier to start with like cereal, rice, toast, bananas and others. However symptoms may worsen when some foods are taken. They are fatty, sugary or spicy foods, dairy products, caffeine, and alcohol. To avoid the dangerous and potentially fatal effects of dehydration from diarrhoea, oral rehydration salts (ORS) are recommended for vulnerable persons such as infants and children, adults over 65 years of age, and people with weakened immune systems. According to a former director-general of the World Health Organization (WHO), Dr. Gro Harlem Brundtland, ORS in developing countries has been one of the great public health success stories of the time. It has reduced the number of deaths every year among children with acute diarrhoea, from 5 million to 1.3 million deaths.