bacteria
closeup
cold
contagious
cure
drug
drugs
empty
epidemic
flu
germs
glass
health
hospital
hypodermic
ill
illness
immunization
infection
influenza
inject
injection
instrument
instruments
isolated
laboratory
medical
medicine
needle
objects
outbreak
pharmacy
plastic
prescription
prick
shot
sick
single
squirt
stab
surgical
swine
syringe
transparent
treatment
tube
vaccination
vaccine
virus
white