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5: CHLAMYDIA 2 FINAL ACC

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    346947
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    Chlamydia: Differences between Genders

    Haley Horst, Ellie Leatham, Breya Hee, Luis Brizuela

    Sociology Department,

    College of Southern Nevada

    SOC 101: Principles of Sociology

    F. Rudacille

    December 9, 2025

    In this essay we are going to discuss Chlamydia as it relates to UNSDG Goal #5 to, “Achieve gender equality and empower all women and girls” (United Nations). Chlamydia is a common sexually transmitted infection or STI that is caused by a bacteria called Chlamydia trachomatis. It spreads through vaginal, anal, or oral sex with an infected partner. It can also be passed during childbirth. Most people do not experience symptoms, yet the bacteria can still cause damage. When patients do experience symptoms, they are unusually discharge, burning during urination, or pelvic pain. If left untreated, chlamydia can lead to serious complications in men and women. Regular screening is important for young adults, since early detection prevents long-term health consequences. Chlamydia’s relationship to gender is seen by differences in how the infection presents, geographical nature, biological risk factors and statistics.

    Studies have shown that the highest infection rate of chlamydia is women aged 15-24, showing more susceptibility. Due to this, it is highly recommended that women under 25 are screened for this disease. The importance is also heightened by the fact that, “70–80% of infections in women and 40–50% in men are asymptomatic” (Sturd & Rucks, 2010). Meaning that almost every case in women is likely to go unnoticed and untreated leading to more longterm health problems. The long-term health problems are often much more severe and can lead to “pelvic inflammatory disease, infertility, and ectopic pregnancy in women” (Sturd & Rucks, 2010). An ectopic pregnancy can then lead to more life-threatening conditions. Research also indicates that antibody responses in women do not prevent ascending into the upper genital tract. Elevated IgG levels “failed to prevent ascension and increased levels of anti-chlamydia IgG were associated with increased risk for incident infection” (Darville, 2019).

    Again, Chlamydia trachomatis is one of the most common sexually transmitted infections worldwide, but its impact differs across regions due to variations in healthcare access, awareness, Chlamydia in Women 3 and sexual-network patterns. Even though the organism behaves the same everywhere, the way it spreads and is detected depends heavily on local conditions.

    Helble and Sternbach explain that “T-cell responses, especially those involving CD4+ T cells, are central to controlling chlamydia infection” (Heble & Starnbach 2021) . While these immune processes are consistent across populations, the long-term outcomes differ geographically. Areas with limited screening often have more untreated infections, which increases complications and allows the infection to circulate more widely.

    Differences in community awareness also contribute to geographic patterns. Lorimer and Hart found that many people in Scotland demonstrated low knowledge about symptoms, testing, and transmission. These gaps often reflect broader regional differences in sexual-health education and access to information. When awareness is low, more infections remain unnoticed, contributing to continued spread.

    Chlamydia’s distribution is also shaped by the structure of sexual networks. McMahon showed that certain partner-type patterns create regional “hotspots” where transmission is more likely. By understanding how partnerships form within specific communities, public health programs can target their interventions more efficiently.

    Overall, chlamydia is not evenly distributed across the world. Instead, its geographical nature is influenced by differences in healthcare, education, and local relationship patterns. Addressing these regional factors through better screening access, awareness campaigns, and targeted partner-notification strategies is essential for reducing the overall burden of chlamydia.

    The next difference is biological risk factors. A biological risk factor is a condition or characteristic inside your body that increases your likelihood of developing a disease. Things like genetics, physiological factors, age, sex, and past or present infections are all biological risk factors. Socioeconomic risk factors are non-medical factors that negatively impact health outcomes. Things like poverty, low and poor education, and limited access to resources. There are many biological and socioeconomic risk factors when it comes to chlamydia.

    Understanding who is most at risk begins with looking at the biological risk factors linked to chlamydia. Being a female is one of the biggest biological risks. The cells that line the cervix are especially susceptible to infection. Adolescence and young adults are at higher risk because their cervical cells are not fully mature, making it easier for chlamydia to attach and spread. Having previous sexually transmitted diseases increases biological vulnerability. Together, these biological factors help explain why certain people are more vulnerable to chlamydia infections.

    Socioeconomic risk factors play a significant role in the frequency of chlamydia. Individuals with limited access to healthcare may experience the lack of routine screenings, treatment, and sexual health education. All of these increase the likelihood of undiagnosed or untreated infections. Lower income communities often have reduced access to all of these things. Socioeconomic inequality can have an impact on education levels. Low and poor education can lead to gaps in knowledge about STI prevention and safe sex practices. These barriers collectively lead to higher rates of chlamydia. Knowing these socioeconomic barriers is essential for reducing chlamydia rates and promoting good sexual health outcomes.

    Chlamydia remains the most widespread and insidious sexually transmitted infection in the world, with adolescents and young adults being the most affected. As one review stated, Chlamydia can persist because "the pathogen inhibits T cell immunity, making it difficult for the host to clear the infection." (Rakesh, 2018). This contributes to immune evasion, which accounts for the tendency of Chlamydia to remain silent-many infected people have no symptoms, complicating the detection and control of this disease.

    The epidemiological burden of the infection is enormous. According to one estimate, “more than 90 million individuals” are infected worldwide every year (Satterwhite et al., 2013). This suggests that the problem is global in its scope and that reported cases probably represent only a small fraction of the actual number, given underdiagnosis and underreporting.

    From an immunological standpoint, the body does try to fight Chlamydia. According to one review, "T cells restrain Chlamydia trachomatis infections" through their activities, but these are often thwarted when the pathogen interferes with immune responses. Furthermore, the immune response is multifaceted and not always successful in clearing the infection: repeated or low-dose exposures can lead to "aberrant immune responses and enhanced tissue pathology."

    Such high prevalence, associated asymptomatic carriage, and imperfect immune clearance combine to make Chlamydia a persistent public health challenge. The fact that millions are infected each year-over 90 million globally-and that many of those infections may go unnoticed, heightens the stakes for robust prevention, screening, and education efforts.

    In sum, Chlamydia trachomatis continues to exact a high toll worldwide. Because the bacterium evades the host immune response, most often presents asymptomatically, and infects millions each year, public health approaches must focus on regular screening, particularly in younger, sexually active populations, notification and treatment of sexual partners, and continued research into immunity-based prevention (including vaccines). It is only with this kind of multipronged effort that control, and eventual reduction of Chlamydia’s global burden become possible.

    References

    Darville, T. (2019). Anti‐chlamydia IgG and IgA are insufficient to prevent endometrial chlamydia infection in women, and increased anti‐chlamydia IgG is associated with enhanced risk for incident infection. Merican Journal of Reproductive Immunology, 81(5), N.PAG.

    Gravningen, K., Furberg, A., Simonsen, G., & Wilsgaard, T. (2012). Early sexual behaviour and Chlamydia trachomatis infection - a population based cross-sectional study on gender differences among adolescents in Norway. BMC Infectious Diseases, 12, 319.

    Helble, J. D., & Starnbach, M. N. (2021). T Cell Responses to Chlamydia. Pathogens and Disease 79(4).

    Jacobs, K. R., Ardizzone, C. M., Banerjee, A., Toh, E., Zhang, X., & Nelson, D. E. (2025). Isolation and characterization of a Chlamydia muridarum tc0237 mutant from a genetic screen that is attenuated in epithelial cells. PLoS ONE, 20(8), e0329637–e0329637.

    Leawood. (2022). Chlamydia. American Family Physician 105(4).

    Liu, L., Sun, X., Li, C., Huang, S., Wang, C., & Tang, W. (2025). Association between prior antibiotic use and reduced chlamydia trachomatis infection prevalence: a cross-sectional study in China. BMC Women S Health, 25(1).

    Lorimer, K., & Hart, G. (2010). Knowledge of chlamydia trachomatis among men and women approached to participate in community-based screening, scotland, UK. BMC Public Health.

    McMahon, B. (2025). Use of a five-category partner-type classification within a chlamydia and gonorrhoea service evaluation highlights opportunities for targeted partner notification to improve STI control. Sexually Transmitted Infections.

    Rakesh, K. (2018). An Adaptive Chlamydia trachomatis-Specific IFN-γ-Producing CD4+ T Cell Response Is Associated With Protection Against Chlamydia Reinfection in Women. Frontiers in Immunology.

    Sachse, K. (2014). Evidence for the Existence of Two New Members of the Family Chlamydiaceae and Proposal of Chlamydia Avium Sp. Nov. and Chlamydia Gallinacea Sp. Nov. Systematic and Applied Microbiology.

    Satterwhite, C. L., Bernstein, J. M., Guerry, K. T., Nakatsukasa-Ono, S. L., & Bauer, H. M. (2013). Opportunities for chlamydia control in the era of healthcare reform: Lessons from two decades of innovative family planning care. Women’s Health.

    Sturd, N., & Rucks, A. (2010). Chlamydia trachomatis. Trends in Microbiology (Regular Ed.).


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