Hepatitis is a term that refers to inflammation of the liver, a vital organ responsible for numerous metabolic functions. While hepatitis can be caused by various factors such as alcohol use, autoimmune diseases, and toxins, the most common causes worldwide are viral infections. These viral infections are predominantly caused by five distinct types of viruses: hepatitis A, B, C, D, and E. Each of these viruses has its own unique characteristics, modes of transmission, clinical presentation, and long-term effects on liver health. This comprehensive article will explore these five types of hepatitis viruses in detail, covering their biology, modes of transmission, symptoms, diagnosis, treatment, prevention, and global health impact. 1. Hepatitis A (HAV) 1.1 Overview and Transmission: Hepatitis A is an RNA virus that primarily spreads through the fecal-oral route, meaning it is transmitted when a person ingests food or water contaminated with the feces of an infected individual. In areas...
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