The "'rebound' positivity," as Dr. O'Connor termed it, meant that Mr. Biden was
forced to resume "strict isolation procedures" in keeping with medical advice. The White House announced that the president would no longer travel to his home in Wilmington, Del., on Sunday as planned nor make a scheduled visit to Michigan on Tuesday to promote newly passed legislation supporting the domestic semiconductor industry. ~ "I've got no symptoms but I am going to isolate for the safety of everyone around me. ~ After five days of isolation, he tested negative on Tuesday evening and returned to the Oval Office on Wednesday, declaring that his relatively mild case demonstrated how much progress had been made in fighting the virus that has killed more than one million Americans.
Initial clinical studies of the drug suggested that only about 1 percent to 2 percent of those treated with Paxlovid experienced symptoms again. A study published in June that has not yet been peer-reviewed found that of 13,644 adults, about 5 percent tested positive again within 30 days and 6 percent experienced symptoms again.
But the anecdotal accounts of Paxlovid rebound have echoed widely, causing many to wonder whether the reported data was still accurate as the new and much more contagious BA.5 subvariant sweeps through communities and reinfects even patients who recently recovered from Covid-19. ~ He added that "the prior data suggesting 'rebound' Paxlovid positivity in the low single digits is outdated" and that the real number was likely significantly higher.
The Biden administration is expected to begin that should prove more effective against the now-dominant Omicron subvariant BA.5.
New research found that Covid killed Black and Hispanic people across small towns and farmlands at considerably higher rates last year than it did their white neighbors.
Two new studies exploring how the Covid outbreak began concluded that the wet market in Wuhan, China, was the likely epicenter of its emergence. ~ "While we continue to monitor real-world data, we remain very confident in the treatment's effectiveness at preventing severe outcomes from Covid-19," a Pfizer spokeswoman, said on Saturday.
The C.D.C. issued an emergency health advisory in May that said people experiencing a rebound case "should restart isolation and isolate again" for at least five days, reflecting the agency's general isolation recommendations for people infected with the virus. The advisory also said that rebounding did not represent reinfection with the virus or resistance to Paxlovid. ~ Moreover, Paxlovid is working really well at preventing serious illness, rebound or no rebound, and that's why he was offered it, and that's why the president took it."
Among his Covid-19 patients experiencing a rebound case, many of them have had the recent Omicron subvariants. ~ Those highly infectious and vaccine-evasive forms of the virus, he added, can cause people to test positive for longer.
"I haven't heard anyone come up with a definitive cause".
Instead of the narrative of beating the virus, however, the president's rebound case reinforces the unpleasant reality that the pandemic refuses to go away. ~ While the president did not wear a mask in the video on Saturday, a photograph released by the White House showed him wearing one as he signed a disaster declaration responding to flooding in Kentucky.
