Neisseria gonorrhoeae.
Signs/Symptoms: Painful urination, genital discharge, and in some cases, rectal or throat infections. In women, symptoms may be milder or absent.
Virulence Factors: Adhesins for mucosal attachment, ability to evade immune response.
Complications: Untreated gonorrhea can lead to pelvic inflammatory disease (PID) in women, epididymitis in men, and can increase the risk of HIV transmission.
Treponema pallidum.
Primary Stage: Painless sore (chancre) at the site of infection.
Secondary Stage: Skin rashes, mucous membrane lesions, flu-like symptoms.
Latent Stage: Asymptomatic.
Tertiary Stage: Severe damage to organs including the heart and brain.
Virulence Factors: Ability to evade immune response.
Complications: Neurosyphilis, cardiovascular syphilis, and other severe systemic manifestations.
Various strains of HPV.
Genital warts (low-risk strains) and potential development of cancer (high-risk strains).
Evasion of the immune response, ability to integrate into host DNA.
Some high-risk HPV strains are associated with cervical, anal, and other cancers. Vaccination is available to prevent certain strains.
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