NPI: NonPharmaceutical Interventions (e.g. masks, social distancing) Epiweek: Epidemiological Week as defined by MMWR LOP: Linear Opinion Pool; method used to calculate Ensemble_LOP and Ensemble_LOP_untrimmed by averaging cumulative probabilities of a given value across submissions. See Notes for more details.
The most likely scenario, says Lessler, is that children do get vaccinated and no super-spreading variant emerges. In that case, the combo model forecasts that new infections would slowly, but fairly continuously, drop from about 140,000 today now to about 9,000 a day by March.
Deaths from COVID-19 would fall from about 1,500 a day now to fewer than 100 a day by March 2022.
That’s around the level U.S. cases and deaths were in late March 2020 when the pandemic just started to flare up in the U.S. and better than things looked early this summer when many thought the pandemic was waning.
And this scenario projects that there will be no winter surge, though Lessler cautions that there is uncertainty in the models and a “moderate” surge is still theoretically possible.
There’s wide range of uncertainty in the models, he notes, and it’s plausible, though very unlikely, that cases could continue to rise to as many as 232,000 per day before starting to decline.