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The article focuses on the condition of public health in various countries. In the United States there is now 99% survival of infants, with life expectancy of 70-00 years and more, a far cry from the figure of 50 years in 1900. Funds for health have reached a high of 16% in the United States. The chief "killers", coronary heart disease (CHD) and stroke, have had their mortality rates almost halved, yet CHD incidence rate has not changed. Total mortality rate from cancer is stationary, or falling only slightly. The prevalence of obesity in women, and of hypertension and diabetes, already exceeds that in the white population. In most countries there is a tremendous health burden from infections, not only from malaria, but also from tuberculosis, and, more recently, from HIV infection. Rates of HIV infection in South Africa are the highest in the world; in parts, nearly 50% of antenatal African women are infected. In Spain, although mean serum cholesterol is rising, CHD mortality is falling. In Japan, although some risk factors are rising, inexplicably, mortality rates for breast and colon cancers are falling.