The US saw a record high of 91,000 new Covid-19 cases reported on Thursday, with spikes in dozens of states just days before the presidential election.
The same day, over 1,000 Americans died with the virus, as the national death toll and number of patients in hospital continue to trend upward.
Over nine million total cases have been reported in the US, according to a Johns Hopkins University tally.
The contest between Donald Trump and Joe Biden comes to a head on Tuesday.
This is the third time this month that the US daily death toll has surpassed 1,000, according to Reuters.
Twenty-one states are experiencing outbreaks, with some of the most severe in the states that will be key in deciding the 2020 election.