A study from researchers at University of Exeter published in the International Journal of Infectious Diseases found 13% of 176 participants carried potentially infectious virus particles at Day 10. With older variants, people became contagious two to four days after infection. Patients infected with the omicron variant of the novel coronavirus are contagious for at least six days, according to a new study. Sign up for the Nature Briefing newsletter what matters in science, free to your inbox daily. After five days, you can end isolation if youve been fever-free for 24 hours (without using a fever suppressant like Tylenol) and your other symptoms are getting better. Although the national COVID-19 public health emergency is ending soon, COVID-19 is not over, the experts note. But some disease experts in both the UK and US have warned that isolation guidance doesn't follow science and risks people inadvertently spreading the virus at work or school, especially if they haven't taken a test. Because omicron appears to cause symptoms faster than previous variants, people with omicron could start becoming contagious as soon as one day after infection. The average patient will experience symptoms for about five days, Morris said. I havent seen anything firm to suggest that these (symptoms) are more than anecdotal right now," says Pekosz. "If symptoms occur, individuals should immediately quarantine until a negative test confirms symptoms are not attributable to COVID-19," the guidance states. Speaking to The Atlantic earlier this week, Ajay Sethi, an epidemiologist at the University of Wisconsin at Madison, said he would like to see more data on Omicron before making any estimates about its incubation period. And people remain contagious a couple days after symptoms subside. Police on scene of shooting in Lower Towamensing Twp. A new omicron subvariant, XBB.1.16, is spreading in the United States, and some doctors are reporting that it may be causing unusual symptoms. It has been clear for some time that people can be infectious from about two days before they develop symptoms. Also called "Arcturus," the XBB.1.16 variant is causing different COVID symptoms like conjunctivitis (better known as "pink eye") in some people who get infected. UK health officials estimated the impact of different isolation periods on COVID-19 infectiousness. Here Are Some Unusual Symptoms in Kids to Look Out for in the New COVID And according to scientists, it makes sense for the incubation period of Omicron infections to be shorter seeing as it's more contagious.
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