STIs

Question 1

Incidence

Answer 1

estimated # of people that are NEWLY infected during a specified time period

Question 2

Prevalence

Answer 2

estimated # of people in a population with the disease

Question 3

Rate

Answer 3

of events / size of the population

Question 4

Most common age group of STIs

Answer 4

15 to 24 years

Question 5

Reasons why STIs are more common in young adults

Answer 5

greater partner turnover

inability to manage sexual health

physiology

Question 6

Physiology of young women that increases risk of STIs

Answer 6

columnar epithalial cells

Question 7

Factors that determine the rate of spread of STI (3)

Answer 7

1) rate of exposure of susceptible people

2) efficiency of transmission per exposure

3) duration of infectivity of those infected

Question 8

Routes of sexual transmission (4)

Answer 8

1) sexual intercourse

2) oral-genital

3) IV/needles

4) congenital - mother to baby

Question 9

STI that can be spread through oral sex

Answer 9

e.g. HSV, HPV, chlamydia, gonorrhoea

Question 10

T or F: HIV can be spread through oral sex

Answer 10

FALSE

Question 11

T or F: Women are more biologically prone to STIs than men

Answer 11

TRUE

physiology

greater surface are

Question 12

Syphilis phases (3)

Answer 12

1) primary
-chanker

2) secondary
-rash

3) tertiary
-spread to organs
-brain, heart

Question 13

HIV primarily infects which type of cell

Answer 13

CD4 T cells

Question 14

HIV diagnosis - 2 things its looking for

Answer 14

1) p24 antigen

2) gp120 antibody