RESUMO
The endemicity status of lymphatic filariasis in Oman is uncertain, with only sporadic cases reported, mostly imported. Immunochromatographic card test surveys were carried out to assess the presence of circulating Wuchereria bancrofti antigenaemia as a marker for active infection in children from suspected high-risk areas of Oman (South Batinah and Dhofar). Lot quality assurance sampling surveys were carried out on a minimum of 250 secondary-school children aged 17-18 years in each of 8 districts from February 2004 to March 2004. All tested students were negative for circulating W. bancrofti antigen. Based on these findings as well as previous data, Oman may possibly be classified as a nonendemic country, with no evidence of indigenous lymphatic filariasis transmission.
Assuntos
Filariose Linfática/epidemiologia , Doenças Endêmicas/estatística & dados numéricos , Wuchereria bancrofti/imunologia , Adolescente , Animais , Antígenos de Helmintos/sangue , Biomarcadores/sangue , Certificação , Filariose Linfática/sangue , Filariose Linfática/diagnóstico , Filariose Linfática/imunologia , Feminino , Humanos , Amostragem para Garantia da Qualidade de Lotes , Masculino , Omã/epidemiologia , Vigilância da População , Kit de Reagentes para Diagnóstico , Características de Residência , Instituições Acadêmicas , Estudos Soroepidemiológicos , Estudantes/estatística & dados numéricosRESUMO
To describe the epidemiology of measles in Oman and the implications for a vaccination programme, we conducted a retrospective record-based study from 1 January 2000 to 31 December 2003 using data from the national epidemiological surveillance system. All cases notified as suspected measles during the study period were included. Of the 185 notified cases, 19.4% were confirmed measles positive. Blood samples for measles IgM were collected in 97.3% of cases. The mean age of measles cases was 8.0 (SD 10.7) years. The estimated overall incidence rate of measles for the study period was 0.53 per 100,000 person-years. Regression analysis indicated measles was significantly commoner among non-Omanis and children who had not been vaccinated.
Assuntos
Programas de Imunização/organização & administração , Sarampo/epidemiologia , Sarampo/prevenção & controle , Vacinação , Adolescente , Adulto , Distribuição por Idade , Análise de Variância , Anticorpos Antivirais/sangue , Criança , Pré-Escolar , Notificação de Doenças , Feminino , Necessidades e Demandas de Serviços de Saúde , Humanos , Imunoglobulina M/sangue , Incidência , Lactente , Masculino , Sarampo/sangue , Sarampo/diagnóstico , Sarampo/imunologia , Vacina contra Sarampo , Vírus do Sarampo/imunologia , Omã/epidemiologia , Vigilância da População , Análise de Regressão , Características de Residência , Estudos Retrospectivos , Estudos Soroepidemiológicos , Vacinação/métodos , Vacinação/estatística & dados numéricosRESUMO
The endemicity status of lymphatic filariasis in Oman is uncertain, with only sporadic cases reported, mostly imported. Immunochromatographic card test surveys were carried out to assess the presence of circulating Wuchereria bancrofti antigenaemia as a marker for active infection in children from suspected high-risk areas of Oman [South Batinah and Dhofar]. Lot quality assurance sampling surveys were carried out on a minimum of 250 secondary-school children aged 17-18 years in each of 8 districts from February 2004 to March 2004. All tested students were negative for circulating W. bancrofti antigen. Based on these findings as well as previous data, Oman may possibly be classified as a nonendemic country, with no evidence of indigenous lymphatic filariasis transmission
Assuntos
Estudantes , Wuchereria bancrofti , Inquéritos Epidemiológicos , Prevalência , FilarioseRESUMO
To describe the epidemiology of measles in Oman and the implications for a vaccination programme, we conducted a retrospective record-based study from 1 January 2000 to 31 December 2003 using data from the national epidemiological surveillance system. All cases notified as suspected measles during the study period were included. Of the 185 notified cases, 19.4% were confirmed measles positive. Blood samples for measles IgM were collected in 97.3% of cases. The mean age of measles cases was 8.0 [SD 10.7] years. The estimated overall incidence rate of measles for the study period was 0.53 per 100 000 person-years. Regression analysis indicated measles was significantly commoner among non-Omanis and children who had not been vaccinated