Background: Information on vaccine effectiveness in a context of novel variants of concern (VOC) emergence is of key importance to inform public health policies. This study aimed to estimate a measure of comparative vaccine effectiveness between Omicron (BA.1) and Delta (B.1.617.2 and sub-lineages) VOC according to vaccination exposure (primary or booster). Methods: We developed a case–case study using data on ...
ABSTRACT - Epidemic surveillance is a fundamental part of public health practice. Addressing under-ascertainment of cases is relevant in most surveillance systems, especially in pandemics of new diseases with a large spectrum of clinical presentations as it may influence timings of policy implementation and public risk perception. From this perspective, this article presents and discusses early evidence on unde...
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Extracto: Visto o enquadramento legislativo, interpretações e jurisprudência, verificamos que existe contexto para aplicar a medidas de isolamento/tratamento preventivo, pelo período de tempo estritamente necessário, perante riscos graves e incertos, mas potencialmente graves, em situações excecionais, ainda que não existam normas específicas fora de estados de emergência e a CRP não refira especificamente esta...