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    Glossary Opportunistic pathogen

    microorganism causing disease in weakened immune systems

    An opportunistic pathogen is a type of microorganism that normally doesn't cause disease in a healthy individual but can lead to infections when the person's immune system is weakened or compromised. For example, people with conditions like HIV/AIDS, undergoing chemotherapy, or taking immunosuppressive drugs are more susceptible to these pathogens.

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    Research 30 of 439

    1. Opportunistic pathogenic fungal co-infections are prevalent in critically ill COVID-19 patients: Are they risk factors for disease severity? South African Medical Journal · 2020 · 17 citations
    2. Phenotypic characterization of non-dermatophyte moulds from companion animals with mycotic dermatitis International Journal of Advanced Biochemistry Research · 2026
    3. Wounds and the Microbiota: The Healing Interplay Between Host and Microbial Communities International Journal of Molecular Sciences · 2025 · 2 citations
    4. The human innate immune protein calprotectin elicits a multi-metal starvation response in<i>Pseudomonas aeruginosa</i> bioRxiv (Cold Spring Harbor Laboratory) · 2021
    5. <i>Pityrosporum</i> species as a cause of allergy and infection Allergy · 1999 · 89 citations
    6. Scalp Bacterial Microbiota Dysbiosis in Androgenetic Alopecia: Community Structure, Functional Profiles, and Associations with Lifestyle Factors medRxiv · 2026
    7. Analysis of skin mycobiota associated with alopecia in captive cynomolgus macaques (Macaca fascicularis) based on Oxford Nanopore Technologies F1000Research · 2025
    8. Combination of an engineered <i>Lactococcus lactis</i> expressing CXCL12 with light‐emitting diode yellow light as a treatment for scalded skin in mice Microbial biotechnology · 2021 · 6 citations
    9. Analysis of the scalp of women with AIDS subjected to autopsy: epithelial, follicular, and immunologic aspects Annals of Diagnostic Pathology · 2012 · 3 citations
    10. Evaluation of Animal Models Suitable for Hair Research and Regeneration InTech eBooks · 2018 · 3 citations
    11. Pathogenicity and enzyme screening of some selected non-dermatophytic moulds Access Microbiology · 2024 · 1 citations
    12. Distinct Phenotypic and Genomic Signatures Underlie Contrasting Pathogenic Potential of Staphylococcus epidermidis Clonal Lineages Frontiers in Microbiology · 2019 · 37 citations
    13. Inflammatory bowel disease: pathogenesis, diagnosis and current therapeutic approach Journal of Mind and Medical Sciences · 2022 · 13 citations
    14. Antimicrobial and Antibiofilm Activities of Abietic Acid against Skin-Associated Opportunistic Microorganisms Journal of Microbiology and Biotechnology · 2026
    15. Skin Barrier Dysfunction in Acne Vulgaris: Pathogenesis and Therapeutic Approaches Medical Science Monitor · 2024 · 18 citations
    16. New developments in our understanding of acne pathogenesis and treatment Experimental dermatology · 2009 · 466 citations
    17. Molecular cytokine-dependent mechanisms of periodontitis pathogenesis and the potential for pharmacological IL-1 modulation in disease treatment Frontiers in Dental Medicine · 2026
    18. Dissecting Cellulitis of the Scalp: Linking Pathogenesis to Therapy Biomedicines · 2026
    19. Weathering the Storm: Harnessing the Resolution of Inflammation to Limit COVID-19 Pathogenesis Frontiers in Immunology · 2022 · 17 citations
    20. ILC3s as central regulators of mucosal homeostasis and disease pathogenesis (Review) International Journal of Molecular Medicine · 2026
    21. The Mechanism and Research Progress of Skin Microbiota in Pathogenesis of Acne Dermatology Research and Practice · 2025
    22. Role of Endolysosomes in Severe Acute Respiratory Syndrome Coronavirus-2 Infection and Coronavirus Disease 2019 Pathogenesis: Implications for Potential Treatments Frontiers in Pharmacology · 2020 · 55 citations
    23. Repurposing Finasteride and Serotonin Reuptake Inhibitors as Novel Antimicrobials: A Dual-Action Approach to Target Bacterial and Fungal Pathogens Frontiers in Bioscience-Elite · 2026
    24. Demodex mites Clinics in dermatology · 2014 · 81 citations
    25. The skin mycobiome and intermicrobial interactions in the cutaneous niche Current opinion in microbiology · 2023
    26. Comparative analysis of scalp and gut microbiome in androgenetic alopecia: A Korean cross-sectional study Frontiers in Microbiology · 2022
    27. Keloids After Herpes Zoster: Report of Wolf’s Isotopic Phenomenon and Literature Review Clinical Cosmetic and Investigational Dermatology · 2023 · 3 citations
    28. T <sub>H</sub> 1 effector CD4 T cells rely on IFN-γ production to induce alopecia areata Science Advances · 2025
    29. Oral Lichen Planus InTech eBooks · 2013 · 7 citations
    30. Cutaneous manifestations of systemic infection in children Current problems in dermatology · 1993