Lecture 12

1.
What do STIs require for transmission? (2)
Intimate contact, persistent infection
2.
What complications can arise from an STI? (2)
Can remain as local infection, important cause of neonatal disease
3.
What are some bacterial STIs? (3)
Chlamydia, Gonorrhoea, Syphilis
4.
What are some viral STIs? (3)
HPV, herpes, HIV
5.
What are some fungal STIs?
Candidiasis
6.
What are some protozoal STIs?
Trichomonas
7.
What is urethritis?
Inflammation of urethra (can be purulent - discharge of pus)
8.
What is cervicitis?
p Inflammation of cervix, can be purulent
9.
What are the complications of epididymitis? (5)
Inflammation of epididymus, chronic pain, infertility, hypogonadism, hormone deficiencies
10.
What are complications of pelvic inflammatory disease in women? (6)
Inflammation of uterus, fallopian tubes, ovaries, Chronic pelvic pain, ectopic pregnancies, infertility
11.
What causes chlamydia?
Chlamydia trachomatis
12.
What disease types extend from Chlamydia? (2)= =Invasive (LVG), oculogenital
13.
What is the infection mechanism for LVG serovars? 
Infect macrophages, migrate to lymph nodes, buboes, proctocolitis (inflammation of colon and rectum)
14.
Who is predominantly infected with LVG serovars? 
MSM
15.
How are genital serovars transmitted?
Sex
16.
What are the complications for genital serovars in women? (3)
70% women asymptomatic, passed to baby during childbirth, pelvic inflammatory disease
17.
How many men are asymptomatic?
25%
18.
How are genital serovars treated?
Antibiotics
19.
How many untreated asymptomatic women will develop PID?
50%
20.
21.
What can untreated serovars in men lead to? (4)=Epidiymitis, urethritis, arthritis, infertility
22.
How many estimated new world wide cases of chlamydia per year?
100M
23.
How many chlamydia cases in NZ? (2015)
30K
24.
Which age range is most affected by Chlamydia?
15-30yrs
25.
26.
What are the diagnostic methods for chlamydia? (3)= =Culture from swab or urine, PCR, microscopy/ELISA
27.
What are the treatments for Chlamydia?
Tetracyclines, macrolides
28.
What is the process of chlamydia infection? (6)
Elementary body, intermediate body, reticulate body, division of reticulate body within inclusion membrane, differentiation of RBs into EBs, cell lysis and extrusion of EBs
29.
What is gonorrhoea caused by?
Neisseria gonorrhoeae
30.
How is gonorrhoea transmitted?
sex
31.
What is the likelyhood of a female contracting gonorrhoea from men (one sexual episode)?
50%
32.
What is the likelyhood of a man contracting gonorrhoea from women (per sexual episode)?
20%
33.
How many women are asymptomatic?
50%
34.
How many men are asymptomatic for gonorrhoea?
5%
35.
What are the symptoms of gonorrhoea? 
Pain during urination
36.
What can untreated gonorrhoea lead to? (7)
Skin pustules, arthritis, meningitis, endocarditis, PID, septic abortion, infertility
37.
How many cases for gonorrhoea (2015)? 
3.5K
38.
Which gender have the higher rate?
Male but not by much
39.
What age range is most affected?
15-40
40.
What is the treatment for gonorrhoea? (2)
Used to be penicillin and  ciprofloxacin but now ceftriaxone, azithromycin
41.
What causes a syphilis infection?
Treponema pallidum
42.
What is the initial symptom?
Chancre (painless ulcer)
43.
44.
What are the secondary symptoms over the following 1-4 years?
Rash (bacteraemic dissemination), fever, meningitis, hepatitis
45.
What are the symptoms of the tertiary phase (years later)?
Small vessel vasculitis (inflammation of blood vessels) affecting brain and aorta
46.
How does syphilis affect babies?
50% of pregnancies will end in miscarriage
47.
What is the trend of syphilis in NZ?
Increasing at a fast rate
48.
What age range is most affected by syphilis infection?
20-40
49.
What is the treatment of syphilis?
Penicillin