As hospitalizations in the United States reached record highs and with intensive care unit (ICU) capacity under heavy pressure, Pfizer and BioNTech today announced an agreement with federal officials to supply 100 million more vaccine doses.Full or nearly full ICUsThe number of hospitals with full or nearly full ICUs has doubled nationwide since the pandemic began, and currently, more than two in five US hospitals with ICUs have 85% or higher occupancy levels, according to a New York Times analysis of hospital data.Meanwhile, the number of Americans currently hospitalized for COVID-19 reached a daily record of 117,777 yesterday, according to the COVID Tracking Project.Surging COVID-19 levels in some of the nation's hot spots have overrun