*Treponema pallidum* is a gram-negative bacteria that causes the disease syphilis. 

*Treponema pallidum*

Congenital syphilis can be transmitted to a child during. This infection can cause stillbirths. Children born with congenital syphilis can develop mucous patches and have damage to organs and teeth. It can also lead to other issues like blindness and deformities. Pregnant women are often tested in the first trimester for syphilis because of how serious these infections are for the child.

Congenital syphilis

By 1947, penicillin was established as a safe and effective cure for syphilis. The existence of this treatment became a critical ethical benchmark, making the deliberate withholding of it from patients or research subjects a major violation of medical and research ethics.

Penicillin as a Treatment for Syphilis

Based on the patient's history and current symptoms, what is the most likely diagnosis for this sexually transmitted infection? Justify your answer by explaining the significance of the two distinct phases of symptoms described.

Clinical Symptom Progression

Syphilis is a sexually transmitted disease that is known to cause skin lesions but can progress to be a deadly disease.

University of Wisconsin - Madison

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- Bacterial vaginosis
- Gonorrhea
- Chlamydia
- Syphilis
- Chancroid

Bacterial Infections of the Reproductive System

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Bacterial vaginosis is an imbalance in the vaginal microbiota. There is no inflammation of the vagina in bacterial vaginosis.

Bacterial vaginosis

Gonorrhea is a sexually transmitted disease that is very common in individuals aged 15 to 24. 

Gonorrhea

Chlamydia is a sexually transmitted disease. It is associated with risks for multiple diseases like cervical cancer.

Chlamydia (Sexually transmitted infection)

Syphilis

Chancroid is a sexually transmitted disease that causes painful sores. 

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