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Sexually Transmitted Infections01:26

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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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Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased...
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Updated: Apr 23, 2026

Author Spotlight: Advancing Syphilis Research — Innovations in Treponema pallidum Cultivation and Genetic Engineering
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[Neurosyphilis in clinical practice].

N I Siuch, S A Polevshchikova, I A Iakupov

    Klinicheskaia Meditsina
    |October 2, 2014
    PubMed
    Summary

    A patient presented with stroke symptoms and was diagnosed with an intracerebral hematoma. Further tests revealed syphilis, prompting an investigation for neurosyphilis.

    Area of Science:

    • Neurology
    • Infectious Diseases

    Background:

    • Stroke is a leading cause of death and disability worldwide.
    • Syphilis is a sexually transmitted infection that can affect multiple organ systems.

    Observation:

    • A 41-year-old patient presented to the emergency department with stroke-like symptoms.
    • Clinical examination revealed an intracerebral hematoma in the right cerebral hemisphere.
    • Serological tests for syphilis were positive.

    Findings:

    • The patient's presentation mimicked a stroke.
    • The intracerebral hematoma was confirmed via diagnostic imaging.
    • Positive syphilis serology raised suspicion for neurosyphilis.

    Implications:

    • This case highlights the importance of considering infectious etiologies, such as neurosyphilis, in patients presenting with stroke-like symptoms.

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  • Early diagnosis and treatment of neurosyphilis are crucial to prevent neurological damage and improve patient outcomes.
  • Further investigation is warranted to confirm the diagnosis of neurosyphilis and guide appropriate management.