Pg. 486- 490

 You will;
 explain how sexually transmitted infections (STIs) can interfere with fertility and
 reproduction; e.g., chlamydia, gonorrhea, human papilloma virus.

 Infection caused by bacteria, viruses and parasites
 Transmitted mainly by sexual contact
 http://www.youtube.com/watch?v=cgPWZW-
FiR4&safety_mode=true&persist_safety_mode=1&safe
=active

 AIDS: acquired immunodeficiency syndrome
 HIV: human immunodeficiency virus
 HIV attacks the helper T cells as this happens the body becomes more susceptible to infection and sickness
 There is no cure only treatment to prolong life expectancy
 http://www.youtube.com/watch?v=kc0_Rh6f6dw&saf ety_mode=true&persist_safety_mode=1&safe=active

 Three types of viral infection A, B, C
 Hep A is contracted through contaminated drinking water (fecal material)
 Hep C is transferred by blood to blood contact
 Hep B is transferred through sexual contact.
Symptoms begin as flulike but can progress to a liver infection, liver failure, liver cancer or death. Some people are carriers they show no symptoms but still transmit the disease.

 Very common viral STI (estimated 1 in 3 people)
 Two known viruses Herpes simplex 1 and 2.
 HSV 1 commonly causes infections around the mouth
(cold sores)
 HSV 2 is sexually transmitted causes blisters and sores
 Person is most contagious when a sore is present but can pass on the disease at any time.
 Mothers with herpes have a C-section to prevents serious complications
 No cure

 Genital warts transmitted by skin contact
 Many people show no symptoms
 Has been linked to increased rates of cervical cancer in women and tumors
 Vaccine available
 http://www.youtube.com/watch?v=GbsLeuCA3LQ&sa fety_mode=true&persist_safety_mode=1&safe=active

 Bacterial infection that 75% of people show no symptoms
 If not treated it can lead to pelvic inflammatory disease and infertility
 Treated with antibiotics
 http://www.youtube.com/watch?v=AeM-O_xhS68

 Bacterial infection
 Causes infection of the cervix, urethra, rectum and throat
 Symptoms are pain when urinating and a thick greenish yellow discharge from the urethra
 Treated with antibiotics

 Bacterial infection characterized by three stages
 1. ulcerated sores near infection site
 2. rash
 3. attack to the cardiovascular system and nervous system
 May lead to mental illness, blindness, heart disease and destructive ulcers
 Treated with antibiotics