According to David Souleles, the [COVID-19] response team director at the University of California, Irvine, when you become symptomatic faster, you have more of the virus circulating in your system. This makes you more likely to spread the sickness to someone else. “Symptoms, so coughing and sneezing, accelerate the ability of the virus to move from person to person,” he said. Plus, since there is no longer a 7-to-10-day window between infection and symptoms, the virus is building up faster and doesn’t have to hang out in a person for a period of days before infecting someone else, Souleles explained.
How quickly can you get infected with Omicron after an exposure?
Huffpost, Aug. 29, 2022
August 29, 2022