[517] In 2021, it was revealed that his condition had been far more serious; he had dangerously low blood oxygen levels, a high fever, and lung infiltrates, indicating a severe case of the disease.[518]

Effects on the 2020 presidential campaign
By July 2020, Trump's handling of the COVID-19 pandemic had become a major issue for the 2020 presidential election.[520] Biden sought to make the pandemic the central issue of the election.[521] Polls suggested voters blamed Trump for his pandemic response[520] and disbelieved his rhetoric concerning the virus, with an Ipsos/ABC News poll indicating 65 percent of respondents disapproved of his pandemic response.[522] In the final months of the campaign, Trump repeatedly claimed that the U.S. was "rounding the turn" in managing the pandemic, despite increasing numbers of reported cases and deaths.[523] A few days before the November 3 election, the United States reported more than 100,000 cases in a single day for the first time.