abbreviation
aids
analysis
background
blood
chlamydia
closeup
diagnosis
disease
diseases
glass
gonorrhea
group
health
hepatitis
herpes
hiv
illness
infection
lab
labels
laboratory
many
medical
medicine
nobody
object
plastic
red
samples
science
sex
sexual
sexually
sickness
std
sti
syphilis
table
test
text
transmitted
tube
tubes
venereal
virus
white
wooden