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Q fever and HIV infection
D Raoult1, P Y Levy, H T Dupont
1Unité des Rickettsies, Faculté de Médecine, Marseille, France.
AIDS (London, England)
|January 1, 1993
Summary
Q fever is significantly more common and symptomatic in individuals with human immunodeficiency virus (HIV) infection. This study highlights Q fever as an important opportunistic infection in the HIV-positive population.
Area of Science:
- Infectious Diseases
- Immunology
- Epidemiology
Background:
- Q fever, caused by Coxiella burnetii, is an infectious disease with a broad clinical spectrum.
- Human immunodeficiency virus (HIV) infection is characterized by immune deficiency, increasing susceptibility to opportunistic infections.
Observation:
- A seroprevalence study was conducted in Marseille, France, comparing Q fever rates in HIV-positive individuals and blood donors.
- Five cases of Q fever co-infection in hospitalized patients between 1987-1989 were identified.
Findings:
- The prevalence of Q fever was significantly higher in HIV-positive individuals (1.37%) compared to blood donors (0.36%).
- Q fever occurred 13 times more frequently and presented with more symptomatic illness in the HIV-positive population.
- Western blot analysis confirmed positive Q fever serology results, minimizing cross-reactivity.
Implications:
- Q fever should be considered in the differential diagnosis for symptomatic illness in HIV-infected individuals.
- The increased frequency of Q fever in HIV-positive individuals is likely due to impaired immune responses to Coxiella burnetii.
- This research underscores the importance of recognizing Q fever as a potential opportunistic infection in immunocompromised hosts.