The US is averaging more than 45,000 new Covid-19 positive tests each day -- up 8% from the previous week and more than double what the country was seeing in June, as lockdown restrictions were easing. It's a case count experts warn is far too high ahead of what's forecast to be a challenging -- and deadly -- winter season. The latest US CDC ensemble forecast says US Covid-19 deaths could reach 233,000 by the end of this month.