Bulletin of the World Health Organization
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Observations made during the epidemics in Côte d'Ivoire (1982), Burkina Faso (1983), Nigeria (1986 and 1987) and Mali (1987), together with studies conducted in the last 10 years, particularly in Côte d'Ivoire, now make it possible, without calling into question the dynamics of yellow fever virus circulation in space and time, to redefine some features of the pattern suggested in 1977 and refined on a number of occasions up to 1983. The endemicity area is still the region of epizootic and enzootic sylvatic circulation, and contains the natural focus and the endemic emergence zone. --The natural focus is no longer confined to the forest alone, now that transovarial transmission has been demonstrated. --The endemic emergence zone is tending to become conterminous with the endemicity area on account of increasing deforestation. Emergence in forest regions, due to Aedes africanus, is still few and isolated, unlike that observed in savanna regions where A. furcifer is the major vector. ⋯ These epidemics can only occur in the endemicity area. --Sylvatic epidemics occur in villages, but only involve the sylvatic vectors. They result from a conjunction of a very large number of emergences for which A. furcifer is almost always mainly responsible, and occur in the endemicity area, usually close to the emergence front. Transmission is never strictly interhuman, as the same vector populations are responsible for epizootic and epidemic transmission.(ABSTRACT TRUNCATED AT 400 WORDS)
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Bull. World Health Organ. · Jan 1989
Comparative StudyNutritional interventions through primary health care: impact of the ICDS projects in India.
In 1975 the Government of India initiated an integrated approach for the delivery of health care as well as nutrition and education services for deprived populations at the village level and in urban slums through centres, each of which was run by a local part-time female worker (anganwadi) who was paid an honorarium and had a helper. This national programme, known as the Integrated Child Development Services (ICDS), began with 33 projects but, by March 1986, had expanded to 1611 projects covering 23% of the country's population and representing about 50% of the population in the socioeconomically backward areas. The ICDS can therefore be considered to function as a primary health care programme for preschool children (under 6 years old), pregnant women, and lactating mothers. ⋯ The results showed that the ICDS nutrition intervention programmes achieved better coverage of the target population and led to a significant decline in malnutrition among preschool children in the ICDS population, compared with the non-ICDS groups that received nutrition, health care and education through separate programmes. This example may lead other developing countries to introduce integrated programmes with certain modifications to suit local conditions. International agencies and national governments should strive to bring about the integration of nutritional services with primary health care and development programmes for children because of the good results in terms of child survival and child development.
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Bull. World Health Organ. · Jan 1989
Hospital-based surveillance of malaria-related paediatric morbidity and mortality in Kinshasa, Zaire.
Although Plasmodium falciparum malaria is a leading cause of paediatric morbidity and mortality in Africa, few quantitative estimates are available about the impact of malaria on childhood health. To quantify the impact of the disease in an urban African setting, we reviewed the paediatric ward and mortuary records at Mama Yemo Hospital in Kinshasa, Zaire. From June 1985 to May 1986, 6208 children were admitted to the hospital, 2374 (38.2%) of whom had malaria; 500 of those with malaria died (case fatality rate, 21.1%). ⋯ The total number of paediatric admissions and deaths remained relatively constant between 1982 and 1986; however, the proportional malaria admission rate increased from 29.5% in 1983 to 56.4% in 1986, and the proportional malaria mortality rate, from 4.8% in 1982 to 15.3% in 1986. These increases were temporally related to the emergence of chloroquine-resistant Plasmodium falciparum malaria in Kinshasa. Malaria is therefore a major cause of paediatric morbidity and mortality in the city, and this study indicates that hospital-based surveillance may be useful in monitoring disease-specific morbidity and mortality elsewhere in Africa.
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Bull. World Health Organ. · Jan 1989
Breast-feeding among the urban poor in southern Brazil: reasons for termination in the first 6 months of life.
A study of breast-feeding practices over the first 6 months of life among a cohort of urban poor infants in southern Brazil indicated that the median duration of breast-feeding was 18 weeks, and at 6 months 41% of the infants were still being breast-fed. The duration of breast-feeding was significantly associated with the following: the infant's sex, mother's colour, type of first feed, timing of the first breast-feed, breast-feeding regimen and frequency of breast-feeding at 1 month, and the use of hormonal contraceptives by the mother. ⋯ Also, the mothers' perception that their milk output was inadequate was the most frequent reason expressed for stopping breast-feeding in the first 4 months. The roles of health services and family support in providing favourable conditions for increasing the duration of breast-feeding in the study population are discussed, as well as the possibility of bias being introduced into studies of the relationship between infant feeding and growth by the effect of the infant's rate of growth on the mother's decision to continue breast-feeding.
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A 30-cluster survey was carried out in order to estimate the incidence of neonatal tetanus in rural Côte d'Ivoire. Births in the 19 months preceding the survey were enumerated by interviewers in house-to-house visits. If a child born in that period had died, the interviewer asked a series of questions to establish a presumptive diagnosis of neonatal tetanus. ⋯ Most deliveries and almost all deaths occurred at home, and only about 2% of neonatal tetanus cases were reported through the routine health information system. Birth in a clinic and antiseptic care of the umbilical cord protected infants from neonatal tetanus. Tetanus immunization of all women of child-bearing age is recommended as a preventive measure.