The accompanying figure shows the effects of different treatments of drinking water on the incidence of typhoid
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700 600 500 400 8 300 200 E 100 0 Filtration of drinking water Capture ImageP Chlorination of drinking water started 1890 1900 1910 1920 1930 Year
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Filtration probably does not completely remove the typhoid microorganis...View the full answer
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Related Book For
Microbiology A Human Perspective
ISBN: 978-0073375311
7th edition
Authors: Eugene Nester, Denise Anderson, Evans Roberts
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