Health gaps between the world's most- and least-advantaged countries have narrowed over the past two decades in areas such as child survival (see chart), maternal deaths in childbirth and deaths from tuberculosis. In its latest statistics, released on 15 May, the World Health Organization found improvements in many countries, but projected that progress was not fast enough to meet 2015 Millennium Development Goals, such as cutting child mortality by two-thirds from 1990 levels.
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