Dried blood spots as a practical and inexpensive source for human immunodeficiency virus and hepatitis C virus surveillance
Mem. Inst. Oswaldo Cruz
; 100(4): 365-370, July 2005. mapas, tab
Article
em En
| LILACS
| ID: lil-405990
Biblioteca responsável:
BR1.1
RESUMO
Passive surveillance of infectious diseases with a high percentage of asymptomatic cases or long incubation periods, such as acquired immunodeficiency syndrome (AIDS), does not reflect the current transmission dynamics. Thus, a multi-strategic surveillance, such as the human immunodeficiency virus (HIV) sentinel surveillance proposed by the World Health Organization (WHO), is necessary. The Brazilian HIV sentinel surveillance was started in May 1992 with this purpose. The objectives of this study were to evaluate the feasibility and costs of HIV and hepatitis C virus (HCV) surveillance using dried blood spots (DBS) collected for neonatal screening of metabolic diseases in the state of Minas Gerais, Brazil. This was accomplished through the comparison of HIV and HCV seroprevalence with previous Brazilian studies. From December 2001 to June 2002, 24,905 newborns were tested for HIV and 4211 for HCV. HIV seroprevalence was 0.25 percent and the 95 percent confidence interval (CI) was 0.18, 0.31 percent; and HCV seroprevalence was 0.71 percent and the 95 percent CI was 0.46, 0.97 percent. These numbers are similar to previous Brazilian studies. Cost in this study was approximately US$ 3.10 per sample, which was roughly one third of the cost of the same exam at the Brazilian HIV sentinel surveillance. We conclude that it is possible and more cost-effective to use DBS for infectious diseases surveillance, albeit it is still necessary to compare these results with the usual sentinel methodology in a concomitant trial.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Coleta de Amostras Sanguíneas
/
Infecções por HIV
/
Triagem Neonatal
/
Custos de Cuidados de Saúde
/
Hepatite C
/
Vigilância de Evento Sentinela
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Humans
/
Newborn
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil