COVID-19 Model Update - Seasonality | September 11 Published September 14, 2020 IHME Director Dr. Christopher J.L. Murray discusses a key assumption in IHME's COVID-19 model as of September 3, 2020 — seasonality. Back to top Related Media mention Covid drives hospitalizations across the country as winter virus season ramps up Media mention Tom Frieden: Covid-19 is still around, and so are these misconceptions Commentary Vaccine confidence after COVID-19 Media mention Introducing the Pandemic Recovery Survey