Evidence for Persistence of Infectious Agents in Isolated Human Populations1

Black, Francis L.; Hierholzer, Walter J.; Pinheiro, F. D.; Evans, Alfred S.; Woodall, John; Opton, Edward M.; Emmons, Jean; West, Bernice S.; Edsall, Geoffrey; Downs, W. G.; Wallace, Gordon G.

doi:10.1093/oxfordjournals.aje.a112032

Cited by 155 publications

(57 citation statements)

References 27 publications

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“…The prevalence of anti-VCA antibodies was similar to that observed in São Paulo 8 and lower than that observed in the indigenous population of the Amazon region 5 . In addition, seroconversion occurred later in our sample than in both of these groups, in whom 90% had positive serology by five years of age.…”

Section: Discussionsupporting

confidence: 79%

Prevalence of Epstein-Barr virus antibodies in healthy children and adolescents in Vitória, State of Espírito Santo, Brazil

Figueira-Silva

Pereira

2004

Rev. Soc. Bras. Med. Trop.

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Section: Discussionsupporting

confidence: 79%

Prevalence of Epstein-Barr virus antibodies in healthy children and adolescents in Vitória, State of Espírito Santo, Brazil

Figueira-Silva

Pereira

2004

Rev. Soc. Bras. Med. Trop.

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“…Entre as populações indígenas brasileiras, pesquisas têm demonstrado alta endemicidade da infecção pelo HBV e HDV, com variações quanto à prevalência, à idade e ao modo de aquisição dos vírus 16,17,18,19,20,21,22,23,24,25,26,27 .…”

Section: Introductionunclassified

Prevalência dos marcadores sorológicos dos vírus das hepatites B e D na área indígena Apyterewa, do grupo Parakanã, Pará, Brasil

2007

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Com o objetivo de estudar a prevalência dos vírus das hepatites B (HBV) e D (HDV), nas aldeias Apyterewa e Xingu, do grupo Parakanã, e avaliar o impacto da vacinação contra a hepatite B, iniciada nessas aldeias em 1995, foram coletadas, em 2004, 258 amostras de soro para análise dos marcadores sorológicos das hepatites B e D, por técnicas imunoenzimáticas; cujos resultados revelaram padrão de endemicidade moderada com prevalência total de infecção pelo HBV de 55,7%, com 5,4% de portadores do vírus, na aldeia Apyterewa, e de 49,5%, com 1,1% de portadores, na Xingu; 31,4% de anti-HBs+ como marcador isolado nas duas aldeias, e não foi detectada sorologia positiva para o HDV entre portadores do HBV. Caracterizamos, em base laboratorial, a presença de portadores crônicos do HBV, ausência de portadores do HDV e emergência de perfil vacinal entre os susceptíveis, confirmando a efetividade e a necessidade de manter a vacinação, principalmente no primeiro ano de vida, e, ainda, a necessidade de desenvolver vigilância epidemiológica efetiva para detecção precoce da infecção pelo HDV, entre os portadores do HBV.

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“…Furthermore, the finding that all the persons examined, including two infants of 1 year old, had the antibody to influenza C virus, tempts us to postulate that the virus might be sustained within this community. Black et al (2) have suggested from the studies of South American Indian tribes that the viral agents which can survive in the small, isolated communities are confined to those that are known to persist in the body for very long periods after initial infection. Apparently, influenza C virus cannot be included in this category.…”

mentioning

confidence: 99%

Prevalence of the Antibody to Influenza C Virus in a Northern Luzon Highland Village, Philippines

Nishimura¹,

Sugawara²,

Kitame³

et al. 1987

Microbiology and Immunology

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A total of 101 serum samples were collected from the persons (1 to 85 years of age) living in a Philippine mountain village where the contact with other communities has largely been restricted. These sera were tested for the presence of antibody to influenza C virus with hemagglutination-inhibition and radioimmunoprecipitation tests. The results showed that all the subjects, including the persons who had never been outside the village, contained the antibody to the surface glycoprotein of the virus, and that the age of acquisition of the antibody was significantly lower in this village than in any of the previously studied communities. Thus it appeared that infection with influenza C virus was prevalent even in this small mountain village, presumably with a higher incidence than in the larger, industrialized communities.

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Evidence for Persistence of Infectious Agents in Isolated Human Populations1

Cited by 155 publications

References 27 publications

Prevalence of Epstein-Barr virus antibodies in healthy children and adolescents in Vitória, State of Espírito Santo, Brazil

Prevalence of Epstein-Barr virus antibodies in healthy children and adolescents in Vitória, State of Espírito Santo, Brazil

Prevalência dos marcadores sorológicos dos vírus das hepatites B e D na área indígena Apyterewa, do grupo Parakanã, Pará, Brasil

Prevalence of the Antibody to Influenza C Virus in a Northern Luzon Highland Village, Philippines

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