A record 3.3m Americans applied for unemployment benefits last week because of the impact of the coronavirus outbreak on the US economy — a fact dismissed as “not relevant” by treasury secretary Steve Mnuchin — as the country’s death toll passes the 1,000 mark, with more than 80,000 infections diagnosed.The US now has the most number of confirmed Covid-19 cases in the world, eclipsing China and Italy, according to reports.