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Published on: June 11, 2011
Severe primary HIV-1 infection among black persons in Barbados
C P Hudson1, P N Levett, C N Edwards
1Department of Medicine, University of the West Indies, Queen Elizabeth Hospital, Barbados.
Insights
This study identified primary HIV-1 infection in a Black population in Barbados, noting clinical features distinct from leptospirosis. Findings suggest severe cases may be rare and potentially misdiagnosed.
Area of Science:
- Infectious Diseases
- Virology
- Epidemiology
Background:
- Primary HIV-1 infection descriptions often lack diversity, primarily focusing on Caucasian populations in industrialized nations.
- Leptospirosis studies in Barbados provided access to stored serum from patients with acute febrile illnesses.
- The Queen Elizabeth Hospital (QEH) in Barbados served as the study site.
Purpose of the Study:
- To describe clinical features of primary Human Immunodeficiency Virus type 1 (HIV-1) infection in a predominantly Black population.
- To investigate potential misdiagnosis of primary HIV-1 infection in patients presenting with acute febrile illnesses.
- To assess the occurrence and characteristics of severe primary HIV-1 infection in a non-Western setting.
Main Methods:
- Retrospective review of medical records of 510 adult patients with known HIV-1 infection at QEH.
- Identification of 10 patients with stored serum from an acute febrile illness preceding or coinciding with their first HIV-1 positive test.
- Serological testing to confirm primary HIV-1 infection and differentiate from leptospirosis.
Main Results:
- Primary HIV-1 infection was confirmed in 9 out of 10 patients, with the 10th being suggestive.
- Clinical features of primary HIV-1 infection were consistent with previous reports but differed from local leptospirosis cases.
- Two patients experienced severe outcomes: one died during seroconversion illness, another 3 months post-seroconversion.
Conclusions:
- Severe primary HIV-1 infection may be relatively uncommon.
- Primary HIV-1 infection can be misdiagnosed, particularly in settings where other febrile illnesses are prevalent.
- The occurrence of severe primary HIV-1 infection might be linked to the establishment phase of the AIDS epidemic.
Abstract:
Descriptions of primary HIV-1 infection have so far been based on Caucasians living in industrialized nations. Due to studies of leptospirosis in the predominantly black population of Barbados, serum was available for patients admitted with acute febrile illnesses to the Queen Elizabeth Hospital (QEH). By searching the medical records of 510 adult patients with known HIV-1 infection we identified 10 patients who had stored serum from an admission for an acute febrile illness that predated or coincided with their first HIV-1-positive test. Serological testing confirmed primary HIV-1 infection in 9 and was suggestive in the 10th patient. The clinical features of these 10 patients were in keeping with previous descriptions of primary HIV-1 infection but differed from leptospirosis cases seen at the QEH. One patient died during his seroconversion illness and another died 3 months after seroconversion. The findings suggest that severe primary HIV-1 infection could be a relatively uncommon occurrence, that the condition may be misdiagnosed, and that cases may not occur until the AIDS epidemic is established.
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