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Start Over You searched for: Subjects Public Health Remove constraint Subjects: Public Health Genre Slides (photographs) Remove constraint Genre: Slides (photographs) Publication Year 1900 to 1999 Remove constraint Publication Year: <span class="from" data-blrl-begin="1900">1900</span> to <span class="to" data-blrl-end="1999">1999</span>

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42. Eradicate Malaria by Spraying

43. Reward--Recompense $1000

44. Has Your Child Had a Lead Test Yet?

47. Quarantine: Scarlet Fever

49. Let's Fight Air Pollution