Almost 48 hours later, Trump became terribly ill. Hours after his tweet announcing he and first lady Melania Trump had coronavirus infections, the president began a rapid spiral downward. His fever spiked, and his blood oxygen level fell below 94 percent, at one point dipping into the 80s. Sean Conley, the White House physician, attended the president at his bedside. Trump was given oxygen in an effort to stabilize him. The doctors gave Trump an eight-gram dose of two monoclonal antibodies through an intravenous tube. That experimental treatment was what had required the FDA’s sign-off. He was also given a first dose of the antiviral drug remdesivir, also by IV. That drug was authorized for use but still hard to get for many patients because it was in short supply. Typically, doctors space out treatments to measure a patient’s response. Some drugs, such as monoclonal antibodies, are most effective if they’re administered early in the course of an infection. Others, such as remdesivir, are most effective when they’re given later, after a patient has become critically ill. But Trump’s doctors threw everything they could at the virus all at once. His condition appeared to stabilize somewhat as the day wore on, but his doctors, still fearing he might need to go on a ventilator, decided to move him to the hospital. It was too risky at that point to stay at the White House.