Abstract:BackgroundThe 2017–2018 influenza season was one of the deadliest in decades, with 180 pediatric deaths, 80% among children who did not receive the vaccine. Circulating influenza strains change periodically, making it important to determine vaccine efficacy on an annual basis specifically in susceptible populations. The primary aim of our study was to estimate the effectiveness of the influenza vaccine for the 2017–2018 season. Secondary aims were to determine effect of weaning immunity and of previous season … Show more
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