abbreviation
adult
aids
awareness
background
bacteria
chlamydia
closeup
coat
concept
diagnosis
diseases
doctor
glass
gonorrhea
hands
health
hepatitis
herpes
hiv
holding
illness
infection
letters
magnifying
male
man
medical
medicine
person
sex
sexual
sexually
sickness
std
sti
syphilis
table
transmitted
treatment
venereal
virus
white