关键词: FluWatch PISA seasonal influenza severity thresholds

来  源:   DOI:10.14745/ccdr.v49i1112a04   PDF(Pubmed)

Abstract:
UNASSIGNED: The World Health Organization (WHO) developed a structured framework to enable countries to rapidly assess the severity of an influenza pandemic. This framework, the Pandemic Influenza Severity Assessment (PISA), is intended to be performed weekly during seasonal epidemics so that assessing influenza severity during a pandemic can be done with greater ease and efficiency.
UNASSIGNED: Using influenza surveillance indicators within Canada\'s FluWatch program from seasons 2014-2015 to 2018-2019, national PISA thresholds were developed and assessed against seasonal data for seasons 2019-2020 to June of 2022-2023.
UNASSIGNED: Canada developed thresholds for each required indicator (transmissibility, seriousness of disease and impact) for multiple WHO-recommended parameters. The thresholds were assessed against four seasons, and it was determined that there was a good agreement between the PISA assessments and the characterization of the season by FluWatch epidemiologists.
UNASSIGNED: With confidence in the validity of the PISA thresholds, the FluWatch program will begin to share PISA assessments weekly through the FluWatch report in the 2023-2024 seasons to help characterize influenza activity in Canada and inform responses to the seasonal influenza epidemic.
摘要:
世界卫生组织(WHO)制定了一个结构化框架,使各国能够迅速评估流感大流行的严重程度。这个框架,大流行性流感严重程度评估(PISA),计划在季节性流行期间每周进行一次,以便可以更轻松,更有效地评估大流行期间的流感严重程度。
使用2014-2015年至2018-2019年加拿大FluWatch计划中的流感监测指标,根据2019-2020年至2022-2023年6月的季节性数据制定并评估了国家PISA阈值。
加拿大为每个所需指标制定了阈值(可传输性,疾病的严重性和影响)对于世卫组织推荐的多个参数。阈值是根据四个季节进行评估的,并确定PISA评估与FluWatch流行病学家对季节的表征之间有很好的一致性。
对PISA阈值的有效性充满信心,FluWatch计划将开始每周通过FluWatch报告分享2023-2024年季节的PISA评估,以帮助描述加拿大的流感活动,并为季节性流感流行提供应对措施。
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