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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 10 of 492

    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. Natural pathogens of laboratory animals and their effects on research Medical Mycology · 2000 · 28 citations
    9. Cerebral vasculitis as a severe complication of acute infectious meningoencephalitis—a case series of five different pathogens Wiener Medizinische Wochenschrift · 2025 · 1 citations
    10. Integrated Safety Analysis of Ritlecitinib, an Oral JAK3/TEC Family Kinase Inhibitor, for the Treatment of Alopecia Areata from the ALLEGRO Clinical Trial Program American journal of clinical dermatology · 2024
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