Introduction: Coronavirus disease 2019 (COVID-19) has become a global public health emergency with lethality ranging from 1% to 5%. This study aimed to identify active high-risk transmission clusters of COVID-19 in Sergipe. Methods: We performed a prospective space-time analysis using confirmed cases of COVID-19 during the first 7 weeks of the outbreak in Sergipe. Results: The prospective space-time statistic detected "active" and emerging spatio-temporal clusters comprising six municipalities in the south-central region of the state. Conclusions: The Geographic Information System (GIS) associated with spatio-temporal scan statistics can provide timely support for surveillance and assist in decision-making.

Abstract INTRODUCTION: Coronavirus disease 2019 (COVID-19) has become a global public health emergency with lethality ranging from 1% to 5%. This study aimed to identify active high-risk transmission clusters of COVID-19 in Sergipe. METHODS: We performed a prospective space-time analysis using confirmed cases of COVID-19 during the first 7 weeks of the outbreak in Sergipe. RESULTS: The prospective space-time statistic detected "active" and emerging spatio-temporal clusters comprising six municipalities in the south-central region of the state. CONCLUSIONS: The Geographic Information System (GIS) associated with spatio-temporal scan statistics can provide timely support for surveillance and assist in decision-making.

Resumo OBJETIVO: descrever as características clínicas e epidemiológicas dos casos de microcefalia em nascidos vivos no estado de Sergipe, Brasil, e calcular as prevalências em seus municípios. MÉTODOS: estudo descritivo sobre nascidos vivos no período de 1o/set a 30/nov de 2015, com dados de prontuários e entrevistas com as mães. RESULTADOS: confirmaram-se 83 casos de microcefalia, com três óbitos; a prevalência nos 26 municípios com casos confirmados variou de 18 a 185/10.000 nascidos vivos; a mediana do perímetro cefálico foi de 31cm (amplitude: 22,5 a 33,0cm); na ultrassonografia transfontanelar, observou-se agenesia de corpo caloso (26/43), lisencefalia (12/43), ausência de linha média (10/43) e ventriculomegalia (8/43); 40 mães referiram exantema na gestação, 23 no primeiro trimestre, com prurido, artralgia e cefaleia; sete foram positivas para infecções potencialmente causadoras de malformações. CONCLUSÃO: observou-se elevada ocorrência de casos de microcefalia, e relato de sinais e sintomas compatíveis com infecção por vírus Zika na gestação.

Abstract OBJECTIVE: to describe the clinical and epidemiological characteristics of microcephaly cases in live births in Sergipe, Brazil, and to calculate the prevalence in its municipalities. METHODS: this is a descriptive study on live births from September 1st to November 30th, 2015, with data from medical records and interviews with mothers. RESULTS: 83 cases of microcephaly were confirmed, with three deaths; prevalence in the 26 municipalities with confirmed cases ranged from 18 to 185/10,000 live births; the median of head circumference was 31 cm (range: 22.5-33.0); agenesis of corpus callosum (26/43), lissencephaly (12/43), absence of midline (10/43) and ventriculomegaly (8/43) were observed in the transfontanellar ultrasound; 40 mothers reported rash in pregnancy, 23 in the first trimester, with pruritus, arthralgia and headache; seven were positive for infections potentially causing malformations. CONCLUSION: there was a high occurrence of cases of microcephaly, and reports of signs and symptoms compatible with Zika virus infection during pregnancy.

Resumen OBJETIVO: describir las características clínicas y epidemiológicas de los casos de microcefalia en nacidos vivos en Sergipe, Brasil, y calcular la prevalencia en los municipios. MÉTODOS: estudio descriptivo de nacidos vivos en el período de 1 de septiembre 30 de de noviembre de 2015. RESULTADOS: se confirmaron 83 casos de microcefalia, con tres muertes; la prevalencia en los 26 municipios osciló entre 18 y 185/10.000 nacidos vivos; la circunferencia de la cabeza media fue de 31cm (rango: 22,5;33,0); en la ecografía transfontanelar había agenesia del cuerpo calloso (26/43), lisencefalia (12/43), la ausencia de la línea media (10/43) y ventrículomegalia (8/43); 40 madres reportaron exantema en el embarazo, 23 en el primer trimestre, con prurito, artralgia y cefalea; siete fueron positivos para infecciones potencialmente causantes de malformaciones. CONCLUSIÓN: hubo una alta incidencia de casos de microcefalia, y la notificación de los signos y síntomas compatibles con infección por el virus Zika durante el embarazo.

Resumo OBJETIVO: descrever as características clínicas e epidemiológicas dos casos de microcefalia em nascidos vivos no estado de Sergipe, Brasil, e calcular as prevalências em seus municípios. MÉTODOS: estudo descritivo sobre nascidos vivos no período de 1o/set a 30/nov de 2015, com dados de prontuários e entrevistas com as mães. RESULTADOS: confirmaram-se 83 casos de microcefalia, com três óbitos; a prevalência nos 26 municípios com casos confirmados variou de 18 a 185/10.000 nascidos vivos; a mediana do perímetro cefálico foi de 31cm (amplitude: 22,5 a 33,0cm); na ultrassonografia transfontanelar, observou-se agenesia de corpo caloso (26/43), lisencefalia (12/43), ausência de linha média (10/43) e ventriculomegalia (8/43); 40 mães referiram exantema na gestação, 23 no primeiro trimestre, com prurido, artralgia e cefaleia; sete foram positivas para infecções potencialmente causadoras de malformações. CONCLUSÃO: observou-se elevada ocorrência de casos de microcefalia, e relato de sinais e sintomas compatíveis com infecção por vírus Zika na gestação.

Abstract OBJECTIVE: to describe the clinical and epidemiological characteristics of microcephaly cases in live births in Sergipe, Brazil, and to calculate the prevalence in its municipalities. METHODS: this is a descriptive study on live births from September 1st to November 30th, 2015, with data from medical records and interviews with mothers. RESULTS: 83 cases of microcephaly were confirmed, with three deaths; prevalence in the 26 municipalities with confirmed cases ranged from 18 to 185/10,000 live births; the median of head circumference was 31 cm (range: 22.5-33.0); agenesis of corpus callosum (26/43), lissencephaly (12/43), absence of midline (10/43) and ventriculomegaly (8/43) were observed in the transfontanellar ultrasound; 40 mothers reported rash in pregnancy, 23 in the first trimester, with pruritus, arthralgia and headache; seven were positive for infections potentially causing malformations. CONCLUSION: there was a high occurrence of cases of microcephaly, and reports of signs and symptoms compatible with Zika virus infection during pregnancy.

Resumen OBJETIVO: describir las características clínicas y epidemiológicas de los casos de microcefalia en nacidos vivos en Sergipe, Brasil, y calcular la prevalencia en los municipios. MÉTODOS: estudio descriptivo de nacidos vivos en el período de 1 de septiembre 30 de de noviembre de 2015. RESULTADOS: se confirmaron 83 casos de microcefalia, con tres muertes; la prevalencia en los 26 municipios osciló entre 18 y 185/10.000 nacidos vivos; la circunferencia de la cabeza media fue de 31cm (rango: 22,5;33,0); en la ecografía transfontanelar había agenesia del cuerpo calloso (26/43), lisencefalia (12/43), la ausencia de la línea media (10/43) y ventrículomegalia (8/43); 40 madres reportaron exantema en el embarazo, 23 en el primer trimestre, con prurito, artralgia y cefalea; siete fueron positivos para infecciones potencialmente causantes de malformaciones. CONCLUSIÓN: hubo una alta incidencia de casos de microcefalia, y la notificación de los signos y síntomas compatibles con infección por el virus Zika durante el embarazo.