antibodies
biochemistry
bottle
chemical
chemist
chemistry
demonstrating
discovery
doctor
examining
experiment
experimenting
glass
gloves
hand
health
healthcare
immunization
injecting
injection
inoculation
jab
lab
laboratory
man
medicine
needle
palm
pandemic
presenting
research
researcher
sample
science
scientific
scientist
showing
solution
student
suggesting
syringe
test
testing
vaccination
vaccine
vial
virus