Disease Facts! Flashcards
What can cause overgrowth of Grrdnerella vaginalis or other anaerobes in the vagina causing Bacterial Vaginalis?
Douching
Multiple Sexual Partners
Intrauterine contraceptive devices
How is BV diagnosed?
Vaginal discharge, decreased lactobacilli, wiff test, pH>4.5 (not acidic enough!), clue cells
Which diseases increase the risk of HIV?
BV
Thrush
Syphilis
Which diseases cause PID
Chlamydia
Gonorrhoea
BV
What is the treatment for BV?
Not recommend - unless pregnant, or undergoing insertion of intrauterine device
Is chancroid common in Australia?
No - mainly in developing countries
How is chancroid transmitted?
Direct contact with ulcer
Discharge during sexual activity
Auto-inoculation
What have ulcers / lesions?
Donovanosis, Chancroid
Genital herpes, Genital warts
LGV, Molluscum contagious (waxy)
Syphilis
If you had to say the defining feature of Donanvonis, what would it be?
Genital lesions (painful to touch, friable, ragged edges)
What must we first ‘rule out’ before we diagnose thrush?
HSV (herpes simplex virus)
Which of the following diseases has a causative organism that is normal flora? A) Bacterial vaginosis B) Candidasis C) Genital herpes D) Trichomoniasis
B - causative agent is candida albicans
Classify causative agent of thrush, BV and trichomoniasis based on the TYPE of organism (e.g., bacterial, viral etc)
Thrush = yeast BV = bacterial Trichomoniasis = protozoa
What defines a recurrent thrush infection? (how many in how long)
4 in 12 months
Which of the following has an intracellular parasite as the causative organism: A) Candidiasis B) Trichomoniasis C) Donovanosis D) Chlamydia What is the consequence of this?
Donovanosis and Chlmaydia
cannot culture it artificially
What is the main clinical feature of donovanosis?
Lesions (highly vascular, friable, bleed easily)
Which of the three (BV, trichomoniasis, thrush) have inflammation
Trush
Trichomoniasis
What is NAAT? Complete the sentence: It is the only __________ for Chlamydia.
Nucleic acid amplification test
It is the only EASILY ACCESSIBLE TEST for Chlamydia.
The highest notifications for Chalmydia is in what age groups? What ethnic group in Australia?
15-29 yo
Aboriginal/Torres Straight Islanders
Is trichomoniasis in male / female?
BOTH!
Male - urethrea
Female - vagina and urethra
What is the main symptom in MALES for any STI?
Urethritis
In trichomoniasis:
What % of males are asymptomatic?
What about females?
Males = 90% Females = 50%
What is the most common cause of GUD?
Herpes Simplex Virus
What are the two types of HSV? Which is which? Can they ‘interchange’ / be transmitted to other areas?
HSV 1 - orolabial
HSV 2 - genital herpes
Can be transmitted to other sites (i.e., HSV1 can infected HSV2 sites etc)
True or false?
Fomite spread is common mode of transmission for HSV.
What are some other methods?
False - it is rare
Perinatal (mother to child, 3rd trimester)
Self inoculation
Skin-skin (symptomatic or asymotpmatic)
During what trimester of pregnancy can HSV be transmitted from mother to child?
Trimester 3
What diseases are NOT involved in community screening?
HSV and genital warts
What are some diseases that ARE screened?
HIV
Chlamydia
Gonorrhoea
Syphilis
Remember: He Couldn’t Get Sick (thanks Dakota!)
True or false?
A primary HSV infection presents with no antibodies.
True
Primary: NO pre-existing Ab
Secondary: pre-existing Ab
Where does HSV become latent? How is this relevant in a clinical scenario?
Dorsal root ganglion
It can reemerge
Which HSV type reemerges more often?
HSV2
Is primary or recurrent HSV infection more severe? Which lasts longer?
What causes recurrence?
PRIMARY - more severe, more painful, longer
Recurrence - stress, menstruation, sexual intercourse
Can we contact trace HSV?
No! We cannot! There is also NO prophylactic treatment :)
How long does it take for symptoms to appear after Trichomoniasis infection?
4-28 days
How long do the eggs in pubic lice take to hatch?
6-10 days