[Acute virus hepatitis - infection hygiene recommendations based on current knowledge]

Area of Science:

• Hepatology
• Infectious Diseases
• Virology

Context:

• The collective term "infectious hepatitis" historically encompasses diseases caused by at least three distinct viral agents.
• Hepatitis A and B are well-defined, but differentiating pathogens for hepatitis non-A/non-B requires standardized diagnostic methods.
• Clinical and epidemiological behaviors, along with infectiousness duration and transmission routes, vary significantly among hepatitis viruses.

Purpose:

• To differentiate the various causative agents of infectious hepatitis.
• To outline distinct clinical and epidemiological characteristics of different hepatitis viruses.
• To define appropriate infection-hygiene measures, immunoprophylaxis, and hospital hygiene protocols based on specific hepatitis types.

Summary:

• Infectious hepatitis comprises diseases caused by at least three pathogens, including hepatitis A, B, and non-A/non-B, with the latter lacking definitive pathogen differentiation.
• No cross-immunity exists between these viral hepatitides, necessitating tailored infection-hygienic measures considering varying infectiousness, transmission routes, and clinical presentations.
• Management strategies address hospital hygiene, immunoprophylaxis, and isolation of patients, particularly those in food-supply or childcare roles, with ongoing challenges in chronic hepatitis B carrier management and legal regulations.

Impact:

• Informed clinical decision-making for managing diverse hepatitis infections.
• Development of targeted infection control strategies to prevent transmission in healthcare and community settings.
• Highlights the need for advanced diagnostic tools for hepatitis non-A/non-B and improved protocols for chronic hepatitis B carriers.