Hepatitis E virus (HEV) is a virus that primarily affects the liver, leading to inflammation known as hepatitis. It is mainly transmitted through contaminated water, making it more common in areas with poor sanitation. Symptoms can include fatigue, jaundice, and abdominal pain, but many people recover without treatment. HEV is particularly concerning for pregnant women, as it can lead to severe complications. While there is no specific antiviral treatment for hepatitis E, vaccines are available in some countries to help prevent infection. Maintaining good hygiene and ensuring safe drinking water are key to reducing the risk of HEV transmission.