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

But first... a quick review!

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

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

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

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

blood / semen / vaginal fluids

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

**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

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

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

Gonorrhea can cause blindness during birth.

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

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

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

"Chancre"

mental illness

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

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

you are always contagious

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

A series of 3 shots

STIs Part II.

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

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

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

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

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

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

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

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?