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Related Concept Videos

Infection01:20

Infection

12.8K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
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Stages of Infection01:26

Stages of Infection

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Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
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Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

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Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
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Sexually Transmitted Infections01:26

Sexually Transmitted Infections

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Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
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Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
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Biodiversity and Human Values01:24

Biodiversity and Human Values

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Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
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The routine use of modified Borelli's lactritmel agar (MBLA).

Mycopathologia·1985
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Laboratory identification of Saksenaea vasiformis: a rare cause of zygomycosis in Australia.

Sabouraudia·1985
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Subcutaneous phaeohyphomycosis caused by Exophiala moniliae.

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Australian aborigines and their dermatophytes.

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Related Experiment Video

Updated: Feb 15, 2026

Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models
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Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models

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Human infection with Dermatophilus congolensis

G W Kaminski, I I Suter

    The Medical Journal of Australia
    |March 27, 1976
    PubMed
    Summary

    Dermatophilosis, a skin disease caused by Dermatophilus congolensis, affects both animals and humans. This report details human cases in Australia, suggesting it may be more common than previously thought.

    Area of Science:

    • Veterinary Dermatology
    • Zoonotic Diseases
    • Microbiology

    Background:

    • Dermatophilosis is a bacterial skin infection caused by Dermatophilus congolensis.
    • The disease commonly affects sheep in Australia, known as 'lumpy wool' or mycotic dermatitis.
    • Dermatophilus congolensis is an actinomycete, a type of filamentous bacteria.

    Observation:

    • This study describes one confirmed and two suspected cases of human dermatophilosis in South Australia.
    • The clinical presentation of these cases is detailed.
    • This adds to the limited previous reports of human infection globally, with only one prior case documented in the United States in 1961.

    Findings:

    • The report confirms human dermatophilosis cases in Australia.
    • It highlights the potential for Dermatophilus congolensis to cause zoonotic infections.

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  • Diagnostic methods, including direct microscopy of scab material, are discussed.

    • Implications:

    • Human infection with Dermatophilus congolensis may be underdiagnosed in Australia.
    • Increased awareness and diagnostic vigilance for dermatophilosis in humans are warranted.
    • Understanding the epidemiology and transmission of this zoonotic disease is crucial for public health.