VOCABULARY
annually
bacteria
billion
cause
cell
contaminate
cramp
diarrhea
digest
feces
function
goat
hospitalization
immunity
infect
infection
intestine
kidney
label
measure
mildly
outbreak
package
pasteurize
prevent
preventive
primary
rarely
severe
spinach
stomach
strain
susceptible
swallow
symptom
thoroughly
toilet
transfusion
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