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6 Cards in this Set
- Front
- Back
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SYPHILIS
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Treponema pallidum
motile spirochete man is only reservoir VIRULENCE FACTORS: does not stimlate normal defense mechanisms, active motility FOUR STAGES: 1 PRIMARY SYPHILIS charac. by CHANCRE (hard, painless sore), 2 SECONDARY SYP developes 2-12 weeks after chancre. charac. by RASH-LIKE LESIONS, FEVER, MALAISE, HAIR LOSS. 3 LATENT SYPH - asymptomatic stage 4. TERTIARY SY. - incurable and terminal stage of s. no cure. cardiovascular system damage: blood vessle walls deterioate central nervous system: deafness, loss of coordination, blindness, paralysis, possible isanity that can be permanent. perforation of the palate TREATMENT: Benzathine penicillin |
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GONORRHEA
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Neisseria gonorrhoeae
MOST COMMON STD in USA direct sexual contact incubation period: 2 days to one week. in males: infects Urethra, urethrites (burning while peeing), pus formation. in females: Cervix but may effect urethra and anal canal. Vagina is resistant to infection. 80% asymptomatic. Pelvic inflammatory disease. Untreated gonorrhea may become systemic (bactermia) joints (arthritis), heart (endocarditis), meninges (meningitis), kidneys (nephritis), skin (skin lesions) small fluid filled lesions all over body. Immunity: v. poor, person can be infected over and over causing organisms can mutate easily. Ophthalmia neonatorum - fetus eye infection. |
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Nongonococcal urethritis NGU
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5 mil new cases each year symp like gonorrhea
Chlamydia trachomatis or Ureaplasma urealyticum males: urthritis females: no early symptoms, causes PID w/ possible salphingitis and infertility can cause pneumonia in newborns |
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GENITAL HERPES
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31-35 mil ppl infected
HERPES SIMPLEX VIRUS TYPE 2 (HSV-2) 1 week incubation Painful fluid-filled lesions develop on the external genitals in both sexes. The vesicles rupture and scab over. Infects urethra and vag tract. no cure of Gen. Herps. but symptoms may be alleviate dwith ACYCLOVIR. NEONATAL HERPES can be fatal to newborns, if the baby survive, the baby can have blindness and probs with CNS |
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GENITAL WARTS
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HPV
treatment: liquid nitrogen |
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AIDS
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HIV (human immunodeficiency virus)
hiv is a retrovirus (enveloped RNA virus) HIV uses it's spikes to attach to CD4 recepotrs on T cells 30% of babies acquire via birth or breast milk 6 MO of infection CATEGORY A - asymptomatic or has chronic enlarged lymph nodes CAT B - persistent infects by years Candida albicans, infect mouth and throat, vagina infected, diarrhea and fever. CAT C - Clinical aids 10 years to develope 1. the CD4 T cells count falls into 200/mm blood or lover, normal 800-1000 2. Tuberculosis often developes 3. REACTIVATION OF LATENT INFECTIONS OCCURS weak immunce sys. - cytomegalovirus eye infections, toxoplasmosis of the brain, Esptein-Barr virus infections. 4. KAPSOI'S SARCOMA MAY OCCUR - purple spots on the skin, which are cancer of skin and blood vessles. RARE - OPPORTUNISTIC INFECTS OFTEN DEVELOPE - Candida albicans infections of the esophagus, bronchi, lungs. Penumonia (Pneumocystic carinii) - can be fatal, frequient cause of death. TREATHEMTN - AZT drug cocktail |
