No one knows the full number of pathogenic viruses that pose a public health threat, but knowing how long harmful viruses can survive in the environment can help us stay healthy and avoid spreading infections.


1. Hepatitis

Viral hepatitis is inflammation of the liver, usually caused by hepatitis virus types A, B, and C. Hepatitis A is a short-term infection, while both B and C can become chronic and lifelong conditions. Contaminated food and water can transmit Hepatitis A, which can live outside the body for months. Hepatitis B is transmitted through infected body fluids, and remains infectious in wet or dry fluids for at least seven days. Hepatitis C is mainly transmitted through direct contact with infected blood and can remain infectious for up to six weeks at room temperature.

Dr_Microbe / Getty Images


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.