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.