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HSCI 120 (49)
Lecture

Hsci 120 - Lecture 5

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Department
Health Sciences
Course
HSCI 120
Professor
Carolyn Stewart
Semester
Fall

Description
HSCI 120 October 6, 2010 Lecture 6 Sexually Transmitted Infections Chapter 8 Cumulative Risk  Cumulative Risk: The likelihood of contracting an STI after repeated unprotect exposure Chlamydia  Chlamydia: A bacterium which is spread by sexual contact and infects genitals of humans  Males have a thin, clear discharge and mild pain on urination  Females have a 75% of being asymptomatic  Males also have a 50% chance of being asymptomatic  Asymptomatic: Having no symptoms  Untreated will lead to urethral damage and can cause Pelvic Inflammatory Disease in women which infects and inflames the pelvic organs, such as fallopian tubes and the uterus HPV  HPV: Human Papillomavirus, causes genital warts  Transmitted through skin-to-skin contact  Genital Warts: Warts appearing on the genitals  HPV causes almost all cervical cancers, penis and anus cancers  Will have fever, painful urination and head aches  Gardasil is the vaccine Genital Herpes  Genital Herpes: A sexually transmitted infection which the symptoms are small, painful bumps or blisters on the genitals  Caused by the HSV: Herpes simplex virus  Continues to live in body and remains dormant – however, it could break out anytime  Increases risk of HIV  Will develop difficulty in urination  Strong psychological consequences HIV and AIDS  HIV: Human immune deficiency virus – the virus which causes AIDS  Is a Retrovirus: Invades host cell, then as host cell copies it self by dividing, virus is copied too  Was first reported in gay men (The gay disease)  AIDS: Acquired Immune Deficiency Syndrome: Destroys the body’s natural immunity to infection  1. Primary Infection: Initial infection, T4 cell count stays at 1000, no symptoms  2. Asymptomatic Infection: Infected, but still no signs or symptoms  3. Progressive Infection: Indications that the person’s immune system is suppressed, T4 = 500  4. AIDS-Defining Opportunistic Infection: Person is affected by life-threatening opportunistic infections, T4 = below 200  HIV transmitted through semen, blood and secretions of the cervix and vagina  Sexual intercourse (vagina or anal)  Contaminated blood  Contaminated needles 
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