World health statistics quarterly. Rapport trimestriel de statistiques sanitaires mondiales
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Available data indicate that pertussis remains an important disease during infancy and childhood, particularly among those who are inadequately immunized. Over the past 15 years, successful immunization programmes have been implemented in most countries in the world. Some problems have arisen in the industrialized world where pertussis had been well controlled previously. ⋯ All efforts should be directed to increase or maintain high immunization coverage with DPT immunization at the level of at least 90% in all districts. Surveillance of pertussis morbidity should be strengthened in all countries and ideally, pertussis should be a reportable disease. More information on the present epidemiological pattern of pertussis, especially age distribution of pertussis cases in developing countries, is needed to develop the policy of booster doses of DPT vaccine in children > 1 year.
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Poliomyelitis has been virtually eliminated from the industrialized countries by mass campaigns conducted with oral polio vaccine (OPV). In 1988, the World Health Assembly set the goal of global eradication of poliomyelitis by the year 2000. The current WHO strategy for eradication uses three primary activities beyond routine immunization with OPV. ⋯ Eradication of polio from the Region of the Americas is close and may have already been achieved. In other regions, the number of reported polio cases has declined, largely as a result of high immunization coverage. As more countries implement polio eradication strategies, the number of polio cases will continue to fall until eradication is achieved.
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Neonatal tetanus (NT) can be effectively prevented through immunization and clean delivery practices. However, NT claimed the lives of over 433,000 infants in 1991. It is endemic in 90 countries throughout the world. ⋯ NT consistently clusters in geographical areas and population groups where shared practices or the environment enhance the risk of cord contamination. 80% of the newborns who died of NT in 1991 were born in South-East Asia or Africa. Of the 90 countries endemic for NT, 10% produce 80% of the world's NT deaths. NT also clusters at country level.(ABSTRACT TRUNCATED AT 250 WORDS)
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The global problem of acute pesticide poisoning has been confirmed as extensive by a variety of independent estimates. Further, it is also recognized to be a problem confined to the developing countries. Most estimates concerning the extent of acute pesticide poisoning have been based on data from hospital admissions which would include only the more serious cases. ⋯ This necessarily reflects only a fraction of the real problem. On the basis of a survey of self-reported minor poisoning carried out in the Asian region, it is estimated that there could be as many as 25 million agricultural workers in the developing world suffering an episode of poisoning each year. This article emphasizes the need to control the problem on a collaborative basis by all concerned, including national governments, agrochemical industries, international agencies, scientists and victims.
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World Health Stat Q · Jan 1988
The global impact of noncommunicable diseases: estimates and projections.
With the aging of populations in developing countries there is both a demographic and an epidemiological transition which affects the impact of chronic degenerative diseases on the health status of the populations. Demographic transition takes place in countries where there are effective programmes of disease control which allow for survival during the early years of childhood and adolescence. This results in an increase in life expectancy which places larger proportions of the population in the age range (60 years and older) in which chronic degenerative diseases become the major determinants of health status. ⋯ The major differences are seen to be in the proportions of deaths expected from such diseases as cancer, diabetes, heart disease, stroke and cirrhosis; but not in the distribution of age at death which is the better measure of disease impact. Demographic analyses, computing indirect estimates of mortality, also demonstrate that there are currently more chronic disease deaths in developing than developed countries and that as expectation of life increases in developing countries the global chronic disease burden will be greatly concentrated in the developing countries. Analyses of risk-factor reduction by feasible intervention strategies, e.g. smoking cessation campaigns, treatment of high blood pressure, using relationships between risk factors and diseases established in longitudinal studies carried out in developed countries, point out that the effect of risk-factor control in long-living populations can be hidden by the dependency of risk factors and various related causes of death, e.g. smoking has an impact on lung cancer, ischaemic heart disease and emphysema, but at different ages.(ABSTRACT TRUNCATED AT 400 WORDS)