*Haemophilus ducreyi* is a gram-negative bacteria that causes the sexually transmitted infection, chancroid. 

*Haemophilus ducreyi*

Chancroid is a sexually transmitted disease that causes painful sores. 

University of Wisconsin - Madison

- Bacterial vaginosis
- Gonorrhea
- Chlamydia
- Syphilis
- Chancroid

Bacterial Infections of the Reproductive System

https://openstax.org/details/books/microbiology/

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

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

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