#COVID SYMPTOMS TIMELINE FEVER WINDOWS#
There’s also a possibility that you may have spread the virus to other people within that short time frame, which was less likely with incubation windows for variants like alpha and beta. If you were infected, chances are your symptoms will appear pretty fast, like by Tuesday or Wednesday. Say, for example, that you had dinner with a friend on Saturday who informs you on Sunday that they just tested positive for COVID-19, and you may have been exposed at the dinner. Plus, since there is no longer a window of seven to 10 days between infection and symptoms, the virus doesn’t have to hang out in a person for a extended period of days before infecting someone else, Souleles explained. With earlier variants, there was a longer gap of time when the virus was building up in the system but not able to be transmitted to another person, he said. “Symptoms, so c oughing and sneezing, accelerate the ability of the virus to move from person to person,” he said. This makes you more likely to spread the sickness to someone else. In previous reporting, Souleles told HuffPost that when you become symptomatic faster, you have more of the virus circulating in your system.
A shorter incubation period means COVID-19 can spread more easily. And, as research has found, “with pre-omicron variants, the periods tended to be longer,” he said. Now, people show symptoms two to five days after exposure, according to Souleles. “While the incubation period for COVID-19 can be anywhere from 2-14 days after exposure to the virus, with the omicron variants currently circulating we see incubation periods much shorter,” David Souleles, the campus public health response team director at the University of California, Irvine, told HuffPost via email. In new reporting, experts told HuffPost that they still agree with these findings and are seeing a short incubation period in their own work, too. Specifically, the incubation time for BA.1, which was the initial omicron subvariant, was three days while the incubation time was four days for delta. It’s worth noting that the studies analyzed in the review largely relied on people recalling their date of infection and the date symptoms started from memory, so there is room for error if study participants misremembered.Īdditionally, an April 2023 study concluded that incubation times for omicron variants were shorter than that of delta variants. “The incubation periods of COVID-19 caused by the Alpha, Beta, Delta, and Omicron variants were 5.00, 4.50, 4.41, and 3.42 days, respectively,” the 2022 review stated. (EG.5, the subvariant that is currently the most dominant COVID-19 strain in the U.S., is a descendant of omicron.) The review, which was conducted by scientists in Beijing, found that with every new variant, COVID-19’s incubation time has decreased significantly. Omicron had the shortest time between infection and symptoms.
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