1. Bacterial STDs1 Sexually transmitted diseases “Venereal Diseases” Example Bacterial STDs Gonorrhea Syphilis Chlamydia Example Viral STDs Herpes genital warts HIV Question

2. Bacterial STDs2 How do bacterial STDs cause infection? Urethra Fallopian tubes Testis and ovaries PID Question

3. Bacterial STDs3 What are characteristics of: Gonorrhea & Chlamydia Chlamydia most common in males -- thick, yellowish pus In females -- vaginal irritation, discharge, etc …Syphilis 3 stages Primary (1 O ) syphilis ‘chancre’ lesion Secondary (2 O ) syphilis rash Tertiary syphilis Question

4. Bacterial STDs4 A Souvenir of London Bought a souvenir in London got to hide it from my mum. Can't declare it at the customs, but I'll have to take it home. Tried to keep it confidential, but the news is leaking out. Got a souvenir of London. There's a lot of it about. Yes I've found a bit of London, and I'd like to lose it quick. Got to show it to my doctor, 'cos it isn't going to shrink. Want to keep it confidential, but the truth is leaking out. Got a souvenir of London. There's a lot of it about. by Procol Harum, 1973 ASoL

5. Bacterial STDs5 Viral STDs How are viruses different from bacteria? Why are viral diseases more difficult to treat?

6. Bacterial STDs6 Viral STDs Herpes (Herpes simplex virus) HSV-I : oral fever blisters HSV-II: genital herpes Human papilloma viruses genital warts cervical cancer HIV Attacks cells of the immune system -- T-cells

7. Bacterial STDs7 AIDS What are the clinical stages of an HIV infection? 1. Acute symptomatic 2. Chronic asymptomatic 3. AIDS There is no cure What about a vaccine? Question

8. Bacterial STDs8 How does HIV cause death? -- AIDS-associated diseases

9. Bacterial STDs9 AIDS Epidemiology Incidence Transmission HIV-I vs HIV-II Cost of AIDS drugs What about an AIDS vaccine?? Question