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Persisting HIV-1 replication triggered by acute hepatitis A virus infection
A L Ridolfo1, S Rusconi, S Antinori
1Institute of Infectious Diseases and Tropical Medicine, Luigi Sacco Hospital, University of Milan, Italy.
Antiviral Therapy
|June 10, 2000
Summary
Acute hepatitis A infection can significantly increase human immunodeficiency virus type 1 (HIV-1) viral load. This immune activation underscores the need for continued antiretroviral therapy and hepatitis A virus (HAV) prevention.
Area of Science:
- Infectious Diseases
- Virology
- Immunology
Background:
- Hepatitis A virus (HAV) infection can cause acute liver inflammation.
- Human immunodeficiency virus type 1 (HIV-1) infection requires ongoing antiretroviral therapy (ART) to maintain viral suppression.
- The interaction between acute viral infections and HIV-1 replication is not fully understood.
Observation:
- Two patients with acute hepatitis A experienced a substantial and prolonged increase in their HIV-1 viral load.
- In one patient, the viral load increase might have been influenced by ART interruption.
- A similar viral load increase was observed in a second patient who maintained undetectable HIV-1 levels without ART prior to HAV infection.
Findings:
- Acute HAV infection is associated with a significant and sustained elevation of HIV-1 viral load.
- Immune activation triggered by acute HAV infection may stimulate HIV-1 replication.
- This effect can occur even in patients with previously suppressed HIV-1 viraemia.
Implications:
- Maintaining ART during acute hepatitis A is crucial for HIV-1 management.
- Preventing HAV infection through vaccination is important for individuals with HIV-1.
- Further research is needed to elucidate the mechanisms linking HAV-induced immune activation and HIV-1 replication.