aids
analyzing
bacillus
bacteria
biology
blood
cdc
disease
fever
health care
hematology
hiv
hospital
illness
immunology
infection
lab
laboratory
lung
medical
medical exam
medical technology
medical test
medicine
micro organism
microbiology
mycobacterium
patient
pneumonia
research
respiratory
science
scientific experiment
serology
sick
sickness
tb
test
tuberculosis