1. Sexually Transmitted Infections Part I.
(formerly known as sexually transmitted diseases)

2. But first...
a quick review!

3. General STI Information
If a person does show STI symptoms, they usually occur 2-5 weeks after exposure
the most common symptom of all STIs is NO SYMPTOMS AT ALL
STIs can be passed on even when someone is asymptomatic
the majority of people passing on STIs are unaware that they are infected
Even if someone was showing symptoms,
they could easily go unnoticed
As a rule of thumb: bacterial STIs can be treated with antibiotics, viral STIs are lifelong

4. Risk Factors for STIs
having unprotected sex
having multiple partners
having a history of STIs
abusing alcohol or other drugs
injecting drugs
being an adolescent female
some STIs can leave a person INFERTILE (also known as STERILE) for the rest of their lives

5. Testing for STIs can be done with tissue, urine and/or blood
doctors office, at-home kits, clinics
Treatment depends on the infection, but may be possible through prescription antibiotics

6. NOT HAVE SEXUAL INTERCOURSE
Preventing STIs
the ONLY way to be 100% sure you will not get an STI is to....
NOT HAVE SEXUAL INTERCOURSE
condoms are the second most effective

7. blood / semen / vaginal fluids

8. AIDS Pathogen Where How Symptoms HIV human immuno-deficiency virus
penis, vagina, mouth, rectum, blood, mucous membranes
How
sex, sharing drug needles, mother to baby, transfusion
Symptoms
skin rashes, diarrhea, fever, weight loss, dry cough, swollen glands, loss of appetite, opportunistic infections

9. **most common STI in the US**
Chlamydia
Pathogen
chlamydia trachomatis bacteria
**most common STI in the US**
Where
penis, vagina, anus, mouth
How
sex
Symptoms
painful urination, watery discharge, itching, burning of the genitals, pelvic pain, bleeding between periods
**risk for infertility

10. Most girls have
no symptoms
of Chlamydia
…and they don’t even
know they are
passing it on…

12. Gonorrhea Pathogen Where How Symptoms neisseria gonorrhoeae bacteria
penis, vagina, anus, throat
How
direct mucous membrane contact during sex
Symptoms
burning discharge from the penis, most women have no symptoms, can cause sterility, arthritis

13. Gonorrhea can cause blindness during birth.

14. Chlamydia continues to be the most common STD
in adolescents and young adults, with a rate of
1,488 cases per 100,000 adolescents!!

15. Genital Herpes Pathogen Where How Symptoms herpes simplex II virus
penis, vagina, anus, mouth, transfer to eyes if sore is touched
How
direct, intimate contact
Symptoms
painful blisters or sores on the genitals, swollen glands, fever, headaches, tiredness

17. 1st stage-"Chancre" painless sore which goes away,
Syphilis
Pathogen
treponema pallidum bacteria
Where
penis, vagina, anus, mouth, break in skin
How
congenital, mucous membrane contact with sores during sex
Symptoms
1st stage-"Chancre" painless sore which goes away,
fatigue, fever, sores, rash, hair loss, nervous system damage, insanity, death

18. "Chancre"

19. mental illness

20. warts on genitals and anus
Genital Herpes
Pathogen
human papilloma virus
Where
genitals, anus
How
sex
Symptoms
warts on genitals and anus

21. Genital Herpes - -an estimated 45 million Americans have
-there are up to one million new cases
each year.

22. you are always contagious

23. Human Papillomavirus (HPV) 30-40% of sexually active teens have HPV

24. A series of 3 shots

25. STIs Part II.

26. Hepatitis Pathogen Where How Symptoms Hepatitis A virus ----------
Hepatitis B and C virus
Where
mouth
-----
penis, vagina, anus, mouth, skin breaks, blood
How
contaminated water and food
saliva, sex, blood, needles, etc.
Symptoms
flu-like symptoms, dark urine, abdominal pain, jaundice

27. dark urine (may look like tea)
Hepatitis B/C
Hepatitis is a disease which causes inflammation of the liver, and sometimes death.
Generally spread by contact with infected blood or other body fluids of people who have hepatitis B or C infection.
gray bowel movements
dark urine (may look like tea)
SYMPTOMS OF HEP
jaundice (the skin turns yellow)
Viral

28. Pubic Lice ("crabs") Pathogen Where How Symptoms pediculosis pubis
pubic hair
How
sex, bedding, toilets, clothing
Symptoms
itching, rash, pinhead-sized blood spots on underwear

30. common after menstruation, sex
Trichomoniasis
Pathogen
protozoan parasite
Where
vagina
How
common after menstruation, sex
Symptoms
odorous, yellow discharge, itching, burning while urinating, urethra and bladder infections

31. Scabies Pathogen Where How Symptoms
parasitic mite that burrows under the skin
Where
skin contact
How
sex, but sometimes no sex
Symptoms
itching in the genital area

33. Vaginitis Pathogen Where How Symptoms
chlamydia, gardnerella, herpes, candidiasis, herpes, trichomonas, mycoplasma
Where
penis, vagina, anus, throat
How
usually sex, but sometimes without sex
Symptoms
pain, discharge, irritation, redness, itching, odor, or asympomatic

34. GIANT MICROBE Station Activity
At each station, record 3 new facts about the STI
Each group will be asked to present their last station
BE GENTLE WITH THE GIANT MICROBES!
your worksheets
will be collected

35. Question: What are 2 STIs caused by a parasite?
Exit Ticket
Question: What are 2 STIs caused by a parasite?
Journal: When we began this week, did you think you knew a lot about STIs? Do you still think you were very informed BEFORE we started?