Scientists are using armadillos to test a new vaccine to help people who have Hansen's disease and to try to find ways to prevent it.
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Scientists are using,List([0, 20)) Scientists are using to test,List([0, 39))
Scientists Scientists Scientists people
are using are using armadillos to test are using armadillos to test a new vaccine to help have
armadillos to test a new vaccine to help people who have Hansen's disease and to try to find ways
a new vaccine to help people who have Hansen's disease and to try to find ways
people who have Hansen's disease
Hansen's disease