analysis
analyzing
bacteria
blood sample
blood test
blood tube
china
collect
concept
container
cure
diagnosis
disease
doctor
doctors
epidemic
equipment
exam
experiment
fluid
gonorrhea
health
hematology
hospital
illness
infection
instrument
lab
laboratory
medical
medical gloves
medicine
patient
positive
protection
research
science
sexual
stethoscope
symbol
test
test tube
text
transmitted
treatment
tube
venereal
virus