BIOC33H3 Lecture Notes - Heart Valve, Vulvar Cancer, Pelvic Inflammatory Disease

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25 Mar 2013
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Chapter 53: Sexually Transmitted Diseases
Sexually transmitted diseases (STDs) are infectious diseases transmitted most commonly
through sexual contact.
Types of STD infections include bacterial (gonorrhea, chlamydia, syphilis) and viral (genital
herpes, genital warts).
Most infections start as lesions on the genitalia and other sexually exposed mucous membranes.
Wide dissemination to other body areas can then occur.
A latent, or subclinical, phase is present with all STDs. This can lead to a long-term persistent
infection and transmission of disease from asymptomatic (but infected) person to another
contact.
Different STDs can coexist within one person.
GONORRHEA
Gonorrhea is the second most frequently reported STD in United States.
It is caused by Neisseria gonorrhoeae, a gram-negative diplococcus.
Gonorrhea is spread by direct physical contact with an infected host, usually during sexual
activity (vaginal, oral, or anal).
The initial site of gonorrhea infection in men is usually the urethra.
Symptoms of urethritis consist of dysuria and profuse, purulent urethral discharge developing 2
to 5 days after infection.
Women with gonorrhea are often asymptomatic or have minor symptoms that are often
overlooked. A few women may complain of vaginal discharge, dysuria, or frequency of urination.
Complications of gonorrhea in men are prostatitis, urethral strictures, and sterility from orchitis
or epididymitis.
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Document Summary

Sexually transmitted diseases (stds) are infectious diseases transmitted most commonly through sexual contact. Types of std infections include bacterial (gonorrhea, chlamydia, syphilis) and viral (genital herpes, genital warts). Most infections start as lesions on the genitalia and other sexually exposed mucous membranes. Wide dissemination to other body areas can then occur. A latent, or subclinical, phase is present with all stds. This can lead to a long-term persistent infection and transmission of disease from asymptomatic (but infected) person to another contact. Different stds can coexist within one person. Gonorrhea is the second most frequently reported std in united states. It is caused by neisseria gonorrhoeae, a gram-negative diplococcus. Gonorrhea is spread by direct physical contact with an infected host, usually during sexual activity (vaginal, oral, or anal). The initial site of gonorrhea infection in men is usually the urethra. Symptoms of urethritis consist of dysuria and profuse, purulent urethral discharge developing 2 to 5 days after infection.

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