above
aids
analyzing
anti
antibody
antigen
blood
cassette
checkup
chronic
closeup
diagnosis
diagnostic
disease
doctor
exam
experiment
health
healthcare
hiv
hospital
illness
immune
immunology
infection
lab
laboratory
medical
medicine
microbiology
negative
patient
positive
rapid
red
research
result
sample
science
scientific
serology
sexually transmitted disease
showing
technology
test
treatment
tube
vacuum
virus