Moderator Of 2 Sessions
Workshop 01: Epidemiological Data Analysis (1) Evaluating Disease Burden and Vaccine Impact Using Time Series Administrative Data
Please note: All ISPPD-12 Workshops are highly interactive and designed to allow at least 25% active learning for the maximum registrants anticipated.
Presenter Of 1 Presentation
O014 - RAPID, UNEVEN REBOUND IN REPORTED INVASIVE PNEUMOCOCCAL DISEASE DURING THE SARS-COV-2 PANDEMIC IN THE UNITED STATES (ID 698)
Endemic respiratory diseases decreased worldwide in the fall and winter of 2020, concurrent with nonpharmaceutical interventions (NPIs) implemented to slow transmission of SARS-CoV-2. Different levels and durations of NPIs were implemented in the United States, with varying levels of adherence, throughout 2020 and 2021.
The CDC compiles weekly reported invasive pneumococcal disease (IPD) cases from state health departments. A baseline of IPD cases from 2016-2019 was compared to weekly IPD cases in 2020 and in 2021. These reports were compared to mobility data from cellular phone location reports, to a composite measurement of stringency to NPIs, and to respiratory syncytial virus (RSV) levels. Bivariate comparisons were done with Spearman correlations.
In 2020, all states and regional groupings showed decreases in IPD from baseline levels. By the end of 2021, almost all states showed a consistent return to baseline IPD levels, though the timing of the return to normalcy varied geographically. Returns to baseline levels of IPD might be correlated with NPI stringency, changes in mobility patterns, and local RSV levels. The surveillance system for IPD experienced more reporting irregularities in 2020, as measured by an increase in discrepancies between initial and final case count values.
The decreases in IPD during the first year of the SARS-CoV-2 pandemic in the US were temporary, returning to baseline levels in 2021. The rate of return to baseline levels of IPD is likely multifactorial.