Hepatitis A
Overview
Hepatitis A is caused by the hepatitis A virus and is transmitted through contaminated food and water. It causes liver inflammation and can lead to jaundice, fatigue, and abdominal pain.
Epidemiological Data
Reproduction Rate (R₀)
1
Mortality Rate
0.3%
Prevalence
1500000.0K per 100k
Infectious Period
2 weeks before to 1 week after jaundice
Detailed Symptoms
Fever, fatigue, nausea, vomiting, abdominal pain, jaundice, dark urine, pale stools.
Symptoms
No symptom data available.
Treatment
Treatment is supportive - rest, adequate nutrition, and avoiding alcohol. Most people recover completely.
Course of Disease
Hepatitis A typically resolves within 2-6 months. Rarely, it can cause acute liver failure.
Complications
No complication data available.
Prevention Details
Prevention includes hepatitis A vaccination, good hygiene practices, and avoiding contaminated food and water.
Prevention
No prevention data available.
Epidemiology
Hepatitis A occurs worldwide, with higher rates in areas with poor sanitation.
Risk Factors
Traveling to endemic areas, consuming contaminated food or water, poor hygiene practices.
Indications
Hepatitis A vaccination is recommended for travelers to endemic areas and people at high risk.
Diagnosis
Diagnosis is confirmed by blood tests for hepatitis A virus antibodies.
Prognosis
Prognosis is excellent with supportive care. Most people recover completely within 2-6 months.
Names & Synonyms
Common Names
Alternative Names
Content Warnings
This information is for educational purposes only and does not replace professional medical advice.
Review Information
Last reviewed by
Medical Team
Review notes
Content reviewed and updated regularly
Medical Information
- Transmission
- fecal_oral, contaminated_food, contaminated_water
- Incubation Period
- 15 - 50 days
- Infectious Period
- 2 weeks before to 1 week after jaundice
- Mortality Rate
- 0.3%
- Reproduction Rate (R₀)
- 1
- Prevalence
- 1500000000 per 100k
- Causative Agent
- Hepatitis A virus
- ICD Codes
- ICD-10: B15 | ICD-11: 1D50
- Vaccine-preventable
- Yes
Critical Information
Reporting Procedure
- Identify and confirm the case
- Notify the local health authority within 24 hours
- Complete the official notification form
- Submit laboratory confirmation if available
- Follow up with the health authority as required