Serological diagnosis of paracoccidioidomycosis in HIV-coinfected patients

Paracoccidioidomycosis should be differentiated from other opportunistic diseases in human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) patients who live in Latin America. Laboratory investigation can begin with serological tests, which are rapid and efficient. In the prese...

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Bibliographic Details
Published in:Memórias do Instituto Oswaldo Cruz 2010-11, Vol.105 (7), p.904-907
Main Authors: Bellissimo-Rodrigues, Fernando, Vitali, Lucia Helena, Martinez, Roberto
Format: Article
Language:English
Subjects:
Adolescent
Adult
AIDS
AIDS-Related Opportunistic Infections - diagnosis
Antibodies, Fungal - blood
Counterimmunoelectrophoresis
double immunodiffusion
ELISA
Enzyme-Linked Immunosorbent Assay
Female
HIV
Humans
Immunodiffusion
Male
Middle Aged
Paracoccidioides - immunology
paracoccidioidomycosis
Paracoccidioidomycosis - diagnosis
paracoccidioidomycosis - HIV - AIDS - double immunodiffusion - ELISA - counterimmunoelectrophoresis
PARASITOLOGY
Sensitivity and Specificity
TROPICAL MEDICINE
Young Adult
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Summary:Paracoccidioidomycosis should be differentiated from other opportunistic diseases in human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) patients who live in Latin America. Laboratory investigation can begin with serological tests, which are rapid and efficient. In the present study, double immunodiffusion (DID), counterimmunoelectrophoresis (CIEP) and an enzyme linked immunosorbent assay (ELISA) tests were assessed for the detection of anti-Paracoccidioides brasiliensis antibodies in 40 patients coinfected with HIV. The results were compared to those obtained for 75 non-HIV-infected patients with endemic paracoccidioidomycosis. Anti-P. brasiliensis antibodies were detected in 65% (DID), 79% (CIEP) and 95% (ELISA) of the patients with HIV/AIDS, significantly lower rates than those detected in cases of endemic paracoccidioidomycosis, which were 89%, 99% and 100%, respectively. The reactive sera of HIV-infected patients also showed lower anti-P. brasiliensis antibody titres than those of non-HIV-infected patients. Despite the lower intensity of the specific humoral response, serological tests are useful for the diagnosis of opportunistic paracoccidioidomycosis in the HIV/AIDS population. We suggest optimization of the laboratory diagnosis by combining the ELISA test with CIEP or DID.
ISSN:1678-8060
0074-0276
1678-8060
0074-0276
DOI:10.1590/S0074-02762010000700011