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1.
J Health Popul Nutr ; 2004 Sep; 22(3): 240-5
Artigo em Inglês | IMSEAR | ID: sea-799

RESUMO

Despite the availability of at least two licensed typhoid fever vaccines--injectable sub-unit Vi polysaccharide vaccine and live, oral Ty21a vaccine--for the last decade, these vaccines have not been widely introduced in public-health programmes in countries endemic for typhoid fever. The goal of the multidisciplinary DOMI (Diseases of the Most Impoverished) typhoid fever programme is to generate policy-relevant data to support public decision-making regarding the introduction of Vi polysaccharide typhoid fever immunization programmes in China, Viet Nam, Pakistan, India, Bangladesh, and Indonesia. Through epidemiological studies, the DOMI Programme is generating these data and is offering a model for the accelerated, rational introduction of new vaccines into health programmes in low-income countries. Practical and specific examples of the role of epidemiology are described in this paper. These examples cover: (a) selection of available typhoid fever vaccines to be introduced in the programme, (b) generation of policy-relevant data, (c) providing the 'backbone' for the implementation of other multidisciplinary projects, and (d) generation of unexpected but useful information relevant for the introduction of vaccines. Epidemiological studies contribute to all stages of development of vaccine evaluation and introduction.


Assuntos
Ásia/epidemiologia , Vacinas Bacterianas , Efeitos Psicossociais da Doença , Países em Desenvolvimento/economia , Estudos Epidemiológicos , Humanos , Programas de Imunização/organização & administração , Polissacarídeos Bacterianos/administração & dosagem , Salmonella typhi/imunologia , Febre Tifoide/economia , Vacinas Tíficas-Paratíficas/administração & dosagem , Vacinas Atenuadas , Vacinas de Produtos Inativados
2.
J Health Popul Nutr ; 2004 Jun; 22(2): 104-12
Artigo em Inglês | IMSEAR | ID: sea-531

RESUMO

Passive surveillance on the burden of disease due to diarrhoea will underestimate the burden if families use healthcare providers outside the surveillance system. To study this issue, a community-based cluster survey was conducted during October 2001 in the catchment area for a passive surveillance study in Zhengding county, a rural area of northern China. Interviews were conducted at 7 randomly-selected households in each of 39 study villages. The respondents indicated where they sought initial care for cases of diarrhoea or dysentery among children or adults. In the absence of diarrhoea and dysentery cases in the household in the preceding four weeks, the respondents were asked about healthcare use for a hypothetical case. Overall, 80% (95% confidence interval [CI] 67-93%) would chose the village clinic, 11% village pharmacy (95% CI 1-22%), 4% township hospital (95% CI -1-10%), 4% self-treatment (95% CI 1-8%), and 1% county hospital (95% CI 0-2%). Approximately, 84% of patients would seek treatment for diarrhoea and dysentery at centres participating in passive surveillance, suggesting that passive surveillance will provide a relatively accurate assessment of burden of diarrhoea in Zhengding county.


Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Análise por Conglomerados , Diarreia/epidemiologia , Disenteria/epidemiologia , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Vigilância da População , População Rural
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