Chlamydia

STI

B: Chlamydia trachomatis

• Often asymptomatic but can cause scarring and pain in women

Trachoma

B: Chlamydia trachomatis

• #1 cause of infectious blindness
• Prevent by daily face washing

Gonorrhea

STI

B: Neisseria gonorrhoeae

• Often asymptomatic, can cause scarring and pain in women

Hepatitis B Virus

STI

Vaccine preventable

V: Hepadnaviridae family

• Vaccine available
• Can become chronic, especially in infants and children -> liver disease
• 40 times more transmissable than HIV

Hepatitis C Virus

STI

V: Flaviviridae family

• Can cause liver cirrhosis and increases risk of liver cancer
• No vaccine
• Interferon and other drugs may suppress infection
• No cure

Herpes simplex virus

STI

V: Herpesviridae

• HSV-1: cold sores
• HSV-2: genital sores
• No vaccine

Human Papillomavirus (HPV)

STI

Vaccine Preventable

V: Papoviridae family

• Genital warts -> cervical cancer
• Vaccine available, but expensive

Syphilis

STI

B: Treponema pallidum

Three stages

1. Rash or chancre
2. Rash
3. Weak arteries and nervous system impairment - mental illness

Trichomoniasis

STI

P - flagellate: Trichomonas vaginalis

Lice

STI

• Pubic louse Pthirus pubis - crabs
• Head louse Pediculus humanus capitis (not an STI)
• Body louse Pediculus corporis (not an STI)

Nits -> Nymphs -> Adults