anthrax
bacilli
bacillus
bacteria
bacterial
bacteriology
bacterium
biochemistry
biology
biomolecules
cancer
cells
contagion
contagious
contaminated
contamination
disease
epidemic
epidemiology
flu
germ
health
hiv
human
hygiene
immune
infected
infection
infectious
medicine
microbe
microbiology
microorganism
microscopic
molecules
organic
organism
outbreak
pandemic
pathogen
pathogenic
research
rod
salmonella
science
system
virus