achievement
background
bacteria
bacteriologist
bad
cartoon
character
control
danger
dangerous
experiment
flask
flu
glass
good
hazard
human
illustration
infection
inspection
laboratory
medical
medicine
micro
microbe
microbiologist
microbiology
microscope
monster
practice
professor
rejoicing
research
risk
safety
science
scientist
sign
small
success
symbol
test
virus
white
working