The US's weekly average of new coronavirus cases reached an all-time high this week.<br />Health professionals have reported nearly 72,000 daily infections of COVID-19.<br />The nation reported its highest-ever daily tally, nearly 84,000 cases, on Friday.<br />The US has recorded more coronavirus cases this fall than during the entire spring outbreak.<br />Public-health experts say these circumstances may justify new lockdowns, but many politicians are reticent.<br />Scientists have feared this dramatic, uncontrolled fall surge of COVID for months.