red virus depth of field background copy space text overlay corona coronavirus corona virus disease t20 omwLB8


COVID-19 Update | November 30, 2021



COVID-19 Update


  • COVID-19
  • Disease Management


coronavirus COVID-19

This report from the Missouri Hospital Association is designed to help you stay abreast of recent developments related to COVID-19.

Share our online form with individuals interested in receiving this update.

Past issues are available in the Media Library.

Dashboard Spotlight

Influenza Season Arrives In Missouri With Historically Cautionary Tale

Staff Contact: Mat Reidhead or Jackie Gatz

The arrival of the 2021-2022 influenza season in Missouri corresponds with a rise in COVID-19 cases and the global emergence of the Omicron variant. Of particular concern to the health care system is the dominant circulating Influenza A (H3N2) subtype during the first seven weeks of the 2021-2022 season.

The last time H3N2 dominated seasonal influenza strains was during the 2017-2018 season, which resulted in the highest disease burden in the U.S. since the 2009 H1N1 pandemic. The 2017-2018 season resulted in 710,000 influenza-related hospitalizations and 52,000 deaths. The Centers for Disease Control and Prevention describes the 2017-2018 influenza season as “a high severity season with high levels of outpatient clinic and emergency department visits for influenza-like illness, high influenza-related hospitalization rates, and elevated and geographically widespread influenza activity for an extended period.”

The CDC’s early detection syndromic surveillance of seasonal influenza using HL7 feeds on patients presenting with ILI from hospital EDs typically is a reliable forecast of hospital utilization. During the first seven weeks of the 2021-2022 season, 1.7% of reported ED visits in Missouri have been for ILI. During the same period in the 2017-2018 season, only 0.87% of visits were for ILI — a relative difference of 97.1%. The 2017-2018 influenza season in Missouri also corresponded with the lowest rates of influenza vaccine coverage in recent years, which may have contributed to higher cases and hospitalizations.

Vaccine Updates
Testing, Reporting & Treatment
Back to Top