Epidemiology and Clinical Management of Paracoccidioidomycosis

Paracoccidioidomycosis (PCM) is a systemic mycosis endemic to Latin America, particularly Brazil, Colombia, Venezuela and Argentina. The causative agents are thermally dimorphic fungi of the Paracoccidioides genus, which transition from a filamentous form in soil to a yeast-like form in the host. Transmission occurs through inhalation of fungal conidia, with agricultural workers, rural populations and individuals with frequent soil exposure at highest risk. Disease manifestations range from asymptomatic infections to severe pulmonary and disseminated forms affecting mucocutaneous tissues, lymph nodes and the central nervous system. Host factors such as immune status, genetic background, age, sex and comorbidities influence the clinical course. Epidemiological patterns have shifted in response to land-use changes, deforestation and climate variability, leading to emergence of cases in previously non-endemic regions. Early and accurate diagnosis relies on direct microscopy, culture and histopathology, supplemented by serological assays for antibody detection and molecular tests for fungal DNA. Management encompasses antifungal therapy—itraconazole is preferred for mild to moderate disease, while amphotericin B remains the standard for severe or disseminated infections—alongside supportive care and monitoring for relapse. Treatment duration is prolonged, typically six to 12 months, and must be tailored to disease severity, immune status and treatment response. Public health efforts focus on enhancing surveillance, expanding access to diagnostics in resource-limited settings, and developing novel biomarkers and point-of-care tests. Recent advances in understanding pathogen ecology, host–fungus interactions and immunopathogenesis have informed updated clinical guidelines and paved the way for new therapeutic and preventive strategies.

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Epidemiology and Clinical Management of Paracoccidioidomycosis publication trend

The graph below shows the total number of articles in epidemiology and clinical management of paracoccidioidomycosis across all publications each year (not limited to Nature Index journals).

Technical terms

Dimorphic fungus: A fungal species that exhibits two distinct morphological forms—filamentous in the environment and yeast-like in human tissue—depending on temperature.

Serological assay: A laboratory test that detects specific antibodies or antigens in blood, used to support diagnosis and monitor treatment response.

Quantitative polymerase chain reaction (qPCR): A molecular technique that amplifies and quantifies target DNA sequences, enabling highly sensitive detection of fungal genetic material in clinical specimens.

References

1. Nano-Enabled Colorimetric Assay for the Detection of Paracoccidioides lutzii: Advancing Diagnostics with Nanotechnology. Journal of Nanotheranostics (2024).
2. Standardization of Semi-Quantitative Dot Blotting Assay—Application in the Diagnosis, Follow-Up, and Relapse of Paracoccidioidomycosis. Microorganisms (2024).
3. Diagnosis and Treatment of Pulmonary Coccidioidomycosis and Paracoccidioidomycosis. Journal of Fungi (2023).
4. New Trends in Paracoccidioidomycosis Epidemiology. Journal of Fungi (2017).