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<h1>
Spring 2007
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<p>
From an in-depth look at aging and health, to one man's quest to stop TB, a graphic investigation into how DNA shapes the health of populations, and more, this issue of
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Johns Hopkins Public Health
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chronicles the cell-to-society research at the Johns Hopkins Bloomberg School of Public Health.
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A New Age for Old Age
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<p>
The unprecedented increase in human life expectancies over the last century could auger nothing less than a society-wide redefinition of life's last stage. From new strategies for exercising the brain to revised models of caregiving, the key concept is "compression of morbidity"--keeping older adults healthy for as long as possible.
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By Jim Duffy
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The Genetic Journey: Following DNA from Cell to Society
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<p>
Since the 1953 discovery of the celebrated double-helix, the genetics revolution has promised a new era of disease treatment and prevention. As researchers map the genome and trace the thread of life from the molecular level to individuals and beyond, the payoff for public health is closer than you think.
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By Brian W. Simpson
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<p>
The tuberculosis bacterium is a study in persistence, its dormant form lurking for years in the patient as it waits for the opportunity to awaken and multiply. But for two decades, groundbreaking TB researcher Ying Zhang has proven to be just as tenacious.
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By Margaret Guroff
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At the end of malaria season in Zambia, one dying boy tries to beat the odds.
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By Rebekah Kent
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Urban health addenda, from making streets bike-friendly to helping homeless vets
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The lifesaving cut that might stem HIV in Africa. Plus: A controversial study of mortality in Iraq; chronic woes in the developing world; small talk on nanotech; and four takes on the art of leadership.
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Rotavirus VaccineâA Powerful Tool to Combat Deaths from Diarrhea
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Significant Urban-Rural Disparities in Injury Mortality Seen in China
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High Antiretroviral Therapy Adherence Associated with Lower Health Care Costs
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Transmission Dynamics of H1N1 Similar to Previous Influenza Strains
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