Hepatitis
Hepatitis is inflammation of the liver, most commonly caused by viral infections (Hepatitis A, B, C, D, E). It can be acute (short-term) or chronic (long-term), potentially leading to liver cirrhosis, cancer, or failure.
What is Hepatitis?
Viral hepatitis affects hundreds of millions worldwide. Hepatitis A and E spread through contaminated food/water (vaccine available for A). Hepatitis B and C spread through blood/bodily fluids; B has a vaccine, C is curable with antivirals. Chronic hepatitis B and C can silently damage the liver for decades before symptoms appear, making screening crucial.
Symptoms
- Fatigue and weakness
- Loss of appetite and nausea
- Abdominal pain (right upper quadrant)
- Dark urine
- Clay-colored stool
- Jaundice (yellowing of skin and eyes)
- Joint pain
- Fever (in acute cases)
Transmission
Varies by type. A & E: contaminated food/water. B: blood, sexual contact, mother-to-child. C: blood-to-blood (needles). D: requires HepB co-infection
Contagious Period: Varies by type; Hepatitis A: 2 weeks before through 1 week after jaundice appears; Hepatitis B & C: while virus is detectable in blood
Prevention
- Hepatitis A and B vaccines
- Safe food and water practices (especially when traveling)
- Never share needles, razors, or toothbrushes
- Practice safe sex (condoms)
- Screen blood products
- Universal precautions in healthcare settings
- Hepatitis B vaccination for newborns
- Screening and treatment programs
Active Outbreaks & Recent Cases
Real-time intelligence from global health monitoring and AI-powered surveillance
Data sources: BEACON, ProMED, WHO, CDC, and 50+ national health agencies
No Active Outbreaks Detected
Our AI-powered surveillance hasn't detected significant Hepatitis activity in the past 30 days.
Real-time monitoring continues 24/7 across BEACON, ProMED, WHO, CDC, and 50+ global health agencies
What This Means
Currently, Hepatitis case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.
Stay Prepared
Download the Virus Watcher app to get instant alerts if Hepatitis activity increases in your region or travel destinations.
Prevention Remains Important
Even without active outbreaks, understanding Hepatitis prevention helps protect you and your community:
- Hepatitis A and B vaccines
- Safe food and water practices (especially when traveling)
- Never share needles, razors, or toothbrushes
- Practice safe sex (condoms)
- Screen blood products
- Universal precautions in healthcare settings
- Hepatitis B vaccination for newborns
- Screening and treatment programs
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Expert Resources & References
Trusted information from leading health organizations
WHO
Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Medically Reviewed Content
Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-03-05
Frequently Asked Questions
Common questions about Hepatitis answered by our epidemiology team
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