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  1. More Images

    Chlamydiae

    Taxobox

    The Chlamydiae are a bacterial phylum and class whose members are remarkably diverse, including pathogens of humans and animals, symbionts of ubiquitous protozoa, and marine sediment forms not yet well understood. All of the Chlamydiae that humans have known about for many decades are obligate intracellular bacteria; in 2020 many additional Chlamydiae were discovered in ocean-floor environments, and it is not yet known whether they all have hosts. Historically it was believed that all Chlamydiae had a peptidoglycan-free cell wall, but studies in the 2010s demonstrated a detectable presence of peptidoglycan, as well as other important proteins. Among the Chlamydiae, all of the ones long known to science grow only by infecting eukaryotic host cells. They are as small as or smaller than many viruses. They are ovoid in shape and stain Gram-negative. Wikipedia

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  2. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › books › NBK8091

    The chlamydiae are a small group of nonmotile coccoid bacteria that are obligate intracellular parasites of eukaryotic cells. Chlamydial cells are unable to carry out energy metabolism and lack many biosynthetic pathways; therefore they are entirely dependent on the host cell to supply them with ATP and other intermediates. Because of their dependence on host biosynthetic machinery, the ...
  3. health.harvard.edu

    Jul 17, 2023What is chlamydia? Chlamydia is a sexually transmitted infection spread by having unprotected sex with someone infected with bacteria called Chlamydia trachomatis. These bacteria are found in the urine and genital secretions of infected people. Chlamydia can affect several areas of the reproductive system, causing urethritis, vaginitis, cervicitis and pelvic inflammatory disease (PID ...
  4. niaid.nih.gov

    Chlamydia is a common sexually transmitted infection that can cause cervicitis in women and urethritis and proctitis in both men and women. NIAID and NIAID-supported researchers are studying how Chlamydia trachomatis bacteria causes disease and developing a vaccine to prevent C. trachomatis infection.

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