Author: Escuyer, Kay L.; Waters, Christine L.; Gowie, Donna L.; Maxted, Angie M.; Farrell, Gregory M.; Fuschino, Meghan E.; St. George, Kirsten
Title: The assessment of data sources for influenza virologic surveillance in New York State Document date: 2016_11_14
ID: 1qq9osfx_16
Snippet: Pooling state surveillance data into national aggregates produce large enough sample sizes to meet recommended confidence levels for the detection of a rare/novel influenza event. During peak season when influenza positivity is 20% or greater, the Right Size Roadmap recommends that states calculate sample sizes sufficient to have 95% confidence in detecting one novel virus among 700 influenza-positive specimens. Prior and post-peak influenza acti.....
Document: Pooling state surveillance data into national aggregates produce large enough sample sizes to meet recommended confidence levels for the detection of a rare/novel influenza event. During peak season when influenza positivity is 20% or greater, the Right Size Roadmap recommends that states calculate sample sizes sufficient to have 95% confidence in detecting one novel virus among 700 influenza-positive specimens. Prior and post-peak influenza activity, when positivity is less than 20%, the Roadmap recommends a detection threshold of one novel virus of 200 influenza-positive specimens, while for offseason and summer periods, a threshold of one novel virus among four influenza positive samples is recommended.
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