addiction
aids
antibiotic
blood sample
care
clinical
cure
disease
doctor
dose
drug
equipment
health
hospital
hypodermic syringe
illness
illustration
inject
injection
instrument
instruments
isolated
lab
laboratory
liquid
medical
medication
medicine
narcotic
needle
nobody
object
plastic
protection
realistic
research
science
shot
sickness
sterile
surgical
syringe
transparent
treatment
vaccination
vaccine
vaccine serum
virus