STI Infections of the Genital Tract Flashcards
What is a commensal micro-organism?
Micro-organism that derives food from other organism without hurting it
What is the difference between an STI and STD?
Infection which can be transmitted vs. a disorder of function which can be passed by sexual activity
What are the venereal diseases?
Syphilis
Gonorrhoea
Chancroid
Which STI are controversial whether they are infections or colonisations?
Mycoplasma hominis
Ureaplasma urealyticum
Bacterial vaginosis
Genital candidosis
What are the characteristics of an STI?
Transmissible
Asymptomatic (mostly)
Manageable but not all curable
Avoidable
Which infections can be transmitted by genital contact only?
Pubic lice
Scabies
Warts (HPV)
Herpes
Which strains of HPV are responsible for genital warts?
Types 6 and 11
What activity is required for the transmission of Hep C?
Group sex
What are the typical physical symptoms of a possible STI?
Ulceration Lumps Discharge Discharge Rashes
What are the typical systemic symptoms of a possible STI?
Fever Rash Lymphadenopathy Malaise Infertility Cancer (HPV) Adverse pregnancy
Why are STIs important?
Common
Use resources
Morbidity/mortality
How common are STIs?
1M acquired every day
500M have genital herpes
What factors are leading to changing STI Dx rates?
Change in number of cases Less transmissibility More sex More MSM More cases being diagnosed More awareness of testing Better tests
What is assortative mixing in STI spread?
People have sex with people with similar lifestyles
High prevalence within subpopulation
Syphilis - IVDA
HCV - HIV+ve men
How is STI managed?
Partner notification
HIV testing
Health promotion
Why is a sexual history necessary in STI diagnosis?
Possible cause of Sx
Detecting high-risk behaviour
Tracing contacts
What is involved in the male risk assessment for STI?
Ever had sexual contact with a man? Ever injected Drugs? Ever with IVDA? Ever with outside UK partner? Medical treatment outside UK Prostitution use
What are the methods of partner notification?
Patient tells contacts (client referral)
NHS tells contacts (provider referral)
Why should you offer further testing for STI patients?
Most STI risk factors are HIV risk factors
If they have one, may have another
What factors can be promoted in health promotion?
Condoms prevent transmission
Oral sex carries risk (higher for fellatio)
Alcohol and other drugs
