Related Experiment Video
Updated: May 23, 2026

Modeling Hepatitis B Virus Infection in Non-Hepatic 293T-NE-3NRs Cells
Published on: June 5, 2020
[Hepatitis: a longstanding companion in human history]
1Docente di Storia della Medicina e Bioetica, Facolta di Medicina e Chirurgia, Universita degli Studi di Palermo, Italy.
Insights
Hepatitis, identified by jaundice, has a long history. Early confusion between epidemic and serum hepatitis was resolved by identifying viruses as the cause, leading to the discovery of Hepatitis A and Hepatitis B.
Area of Science:
- Hepatology
- Virology
- Epidemiology
Context:
- Hepatitis, characterized by jaundice, has been documented for millennia.
- Historical records reveal outbreaks of epidemic jaundice, causing diagnostic confusion with other etiologies.
- Early medical understanding struggled to differentiate between various forms of jaundice and their causes.
Purpose:
- To trace the historical understanding of hepatitis and its causes.
- To elucidate the diagnostic challenges in differentiating hepatitis types.
- To highlight the pivotal role of scientific investigation in identifying viral hepatitis.
Summary:
- The historical presence of hepatitis is evident from ancient records of jaundice outbreaks.
- Distinguishing between epidemic (HAV, HEV) and serum (HBV, HCV) hepatitis presented diagnostic challenges.
- The confirmation of viruses as the primary cause of jaundice, particularly after a 1942 US Army outbreak, was a significant breakthrough.
- This led to the identification of distinct viral hepatitis types: Hepatitis A and Hepatitis B.
Impact:
- Improved understanding of hepatitis etiology and transmission.
- Foundation for the development of diagnostic tools and treatments for viral hepatitis.
- Enabled differentiation between various hepatitis viruses, crucial for public health management.
Abstract:
Hepatitis has gone along with human history since its origins, due to its prompt identifiability linked to jaundice as a symptom. Written evidence of outbreaks of epidemic jaundice can be tracked back a few millenniums before Christ. Unavoidable confusion arises due to the overlap of different sources possibly linked to different aetiologies, identified over time as epidemic jaundice (HAV or HEV hepatitis?) and serum hepatitis (HBV or HCV hepatitis?). The journey that brought to recognize viruses as the main cause of jaundice was long and started midway during the last century, when the infectious hypothesis, which had taken place step by step, was finally confirmed by epidemiological investigations of an outbreak occurring in the US army in 1942, after a yellow fever immunization campaign. Further research identified two clinically different types of hepatitis, called for the first time hepatitis A and hepatitis B.
Related Concept Videos
Hepatitis
Viral Hepatitis I: Introduction
Cirrhosis I: Introduction
Diseases of the Liver and Gallbladder
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Cirrhosis II: Pathophysiology
Chronic Pancreatitis I: Introduction

