Global disease experts say little is known about China's experience with long-term COVID effects thought to have afflicted millions with debilitating fatigue, brain fog and other symptoms
"Fully vaccinated persons who meet criteria will no longer be required to quarantine following an exposure to someone with COVID-19," the CDC said.
The criteria include that the people exposed to COVID-19 were fully vaccinated, exposure was within three months following receipt of the last dose, and they have remained asymptomatic since the current exposure, according to the agency.