anti
antibacterial
antiseptic
antiviral
bacteria
biology
blurred
concept
control
coronavirus
defender
defensa
disease
ebola
epidemic
german
guard
health
hospital
human
hygiene
i bacteria
icon
illness
illustration
immune
immunity
immunology
isolated
kill
medicine
microbe
outbreak
outline
pandemic
protection
protector
quarantine
safety
security
shield
spreads
stop
system
the infection
the prevention
the vaccination
vaccine
virus