Psych Unit 18 and 19 Flashcards
(77 cards)
STIs/STDs
refers to infections transmitted thru sexual contact with an infected individual
- STI term is preferred
- STI refers to an infection (vs. disease which makes it sound scarier)
- disease usually refers to when the infection causes symptoms, damages body parts, or leads to long-term illness (most STIs don’t do this)
Why STIs are Public Health Problem
STIs are a very big public health problem
- a lot of STIs don’t show symptoms
- people don’t get treated for them if they’re unaware they have an STI
- can lead to long-term health problems
CDC Data on STIs - General
data from 2018
- 1 in 5 people in the US have an STI
- 26 million new cases of STIs in 2018
- STIs are a problem among young people (15-24)
- HPV is more prevelant than HSV-2
- Chlymadia and ghonorrea have high incident rates but low overall prevalence
Bacterial STIs
caused by the entry of some bacteria into the body
- can be cured by antibiotics
- if the bacteria continues living in body for a long time, it can cause long-term health problems
ex: chlymadia, gonorrhea, syphilis, trichomonoiasis (it’s a protozoa, not bacterial but can be treated)
Virals STIs
caused by the entry of some virus into the body
- can enter host cells and stay in your body for the rest of your life
- can’t be cured (but we do have ways to help symptoms, prevent spread, and prevent further damage)
Ex: HPV, hepres, HIV, hepatitis B
Chlamydia
more common STI
- spread thru vaginal, oral, anal sex with someone who has it
- can get it from someone’s pre-cum
- infected pregnant people can infect their baby during childbirth (the baby can get eye infection or pnemonia)
- usually transmitted thru bodily fluids
Even though we have effective treatments, the rates have increased in most years except for 2020
Chlamydia Symptoms
Men:
- 50% of males are asymptomatic
- clear discharge from penis
- discomfort while peeing
women:
- a lot of women are asymptomatic
- unusual vaginal discharge
- burning sensation while urinating
Chlamydia Treatment
treatment:
- antibiotics
- penicilin (a lot of people are resistaant to penicilin)
if you don’t get treated:
- can cause urethral damage
- infections in epididymis
- Reiter’s Syndrome (retroactive arthritis)
- for women: pelvic inflammatory disease (can impact future fertility)
Chlamydia Prevention
- condoms, regular testing (many ppl are asymptomatic)
- doctors usually test for this bc it’s so common
- one idea is to screen kids from 13 and older (North Carolina did this and found many asymptomatic cases)
- free home test kits
- communication with partners
Gonorrhea
high incidence rate but low prevelance
- really common but less common than chlamydia
- bacterial infection (gonococus)
- spreads thru vaginal, anal, or oral sex with infected person
- one of the oldest infections (talked abt in the Bible)
- greek doctor thought it developed from a too much pleasure of Venus (goddess of love)
- always been a problem especially during wartime (epidemic during WWI and WWII)
- more cases because many people are on The Pill and don’t use condoms :)
Gonorrhea Symptoms
women:
- cervical infection - pus
- most women don’t have symptoms
- can spread to urethra
- if infection isn’t treated, it can move into uterus and and infect fallopian tubes (tissue becomes enflamed and turns into pelvic inflammatory disease)
- if PID isn’t treated it can scar fallopian tubes, making the women infertile
men:
- thin, clear discharge
- symptoms show up around 2-3 days being infected
- burning sensation during urination
Gonorrhea Diagnosis
bc chlamydia and gonorrhea symptoms are so similar, they get misdiagnosed – now few misdiagnosis
diagnosis:
- urine test for men
- if you think the gonorrhea is in throat, you can swab there
- swab for the rectum
- women need urine test and pelvic exam
Gonorrhea Treatment and Prevention
treatment:
- antibiotics
- it’s resistant to penicilin
without treatment:
- sterility and infertility
- infection (rash, fever)
- painful infection in tubes attached to testicles
- pelvic inflammatory disease
- stomach pain
- scar tissue in fallopian tubes
- ectopic pregnancy
Prevention: condoms, regular testing, communication with partners
HPV (Human Papillomarvirus)
increases the risk of cervical cancer and other cancer
- HPV isn’t cancer, but it increases the risk for certain cancers
- causes genital warts but many cases don’t have warts (no cure for the warts)
- there’s an HPV vaccine!!!
- the majority of people with HPV are asymptomatic
in the US:
- HPV is the most common STI
- but the rate has dropped
- before the vaccine, 12% of women were infected
genital warts: warts on genitals
- males: around the urethral opening, shaft of penis and scrotum
- females: vuvla, vaginal walls, and cervix
HPV can also cause oral cancer (cancer of the mouth or throat)
HPV Vaccine
given to ideally aged 11-12, but can give up to 26 yrs old
- get 3 shots over a 6-month period (given to all genders, not just girls)
Gardasil 4 vaccine:
- protects against types 16 and 18 (cancer types ) and type 2 (wart type)
- 95% effective
Gardasil 9:
- protects against 9 types
- the additional 5 types are more common in African Americans
- Gardasil 4 was developed to protect white people not black people
Genital Herpes: Herpes Simplex Virus, Type 2 (HSV-2)
different types of herpes (also HSV-1 the cold sores on mouth)
HSV-2 – genital herpes
- no cure bc it’s a virus
- rates of HSV-2 are much higher for women (infections are easier to transmit between men and women than women to men during intercourse)
spread thru:
- vaginal, oral and skin-to-skin contact with someone who has genital herpes (includes kissing)
Genital Herpes Symptoms
“outbreaks”
- many infected ppl have no symptoms
- one or more blisters around the genitals, rectum, or mouth
- blisters break and can leave painful sores
- outbreaks last 7-10 days (shorter with anti-viral drug)
- some people get an outbreak and never get another one
when no outbreak: they still have the virus but no shedding
- low level of the virus
Genital Herpes Treatment
anti-viral meds: shorten outbreaks
- no cure (no drug that kills the virus)
long-term issues:
- increases risk of HIV infection
- can be tranferred from mom to baby during birth (can cause the bay to die)
- risk in infection in baby is highest for pregnant women who experience their first outbreak
- C-sections usually done to prevent transmission from mom to baby
- narrow urethra that leads to scarring (problems with urination)
- condoms can help prevent the spread
HIV & AIDS
a doctor in LA first discovered AIDS and it plagued the gay community
AIDS = Acquired Immune Deficiency Syndrome
HIV = Human Immune Deficiency Virus
- 2 types: HIV-1 and HIV-2
- many people have died from AIDS
- under control in the US now (but it can be an epidemic or pandemic)
- Black men are more affected by HIV than any other racial or ethnic group
- more trans women have HIV
HIV/AIDS Infected
HIV is common in men
- 66% of men who have sex with men have this
- 7% from heterosexual contact
- 4% from injecting drugs
- 1% from hemophiliacs (get blood transfusions)
women:
- from heterosexual sex
- from injecting drugs
HIV/AIDS Transmission
bodily fluids:
- semen, blood, less likely thru vaginal or cervical secretions
- unlikely from saliva
sex:
- penis-in-vagina sex
- anal (person recieving is at higher risk bc the rectum lining can be torn which makes it easier for HIV to get in)
- less likely from oral-genital sex
- female-female transmission is rare
contaminated blood:
- blood transfusions (in the US, blood is screened)
- there’s still a stigma that gay men shouldn’t donate blood)
- needles
- childbirth
How HIV Turns Into AIDS
- untreated HIV can get to a point where you can’t fight off any infection
- can be controlled if dealt with properly
- HIV weakens immune system
- invades Helper T cells to copy itself and then destroys the Helper T cells
Helper T cells: tell immune cells to do their jobs
- in HIV, Helper T cells are destroyed, so the body isn’t alerted to defend itself against other infections
***when the body can’t fight off infection on its own, HIV turns into AIDS
Stages of HIV to AIDS
stage 0: initial infection, body develops antibodies (2-8 weeks)
- asymptomatic
- t cell count 1,000 (normal count)
- ppl can stay in stage 0 for years
stage 1: t cell count greater than 500
- no symptoms
- if symptoms, swollen lymph nodes, night sweats
stage 2: t cell count between 499 and 200
stage 3: HIV is now turned into AIDS
- t cell count is less than 200
- opportunistic infections (infections that happen only in people with really compromised immune systems - invasive cervical cancer)
Forgotten History of AIDS - Video
1980s – public reacted with prejudice to people with AIDS (bc in gay community)
- people thought there should be a quarentine for gay people, drug users, and prostitutes
- they thought ordinary ppl couldn’t get AIDS
- a little boy (Ryan) got AIDS from a blood transfusion
- people don’t have the same access to treatment for AIDS