As the country continues to report more than 5.5 million new coronavirus cases each week, health experts say coming across the highly transmissible omicron variant isn't a matter of "if," but "when." The Centers for Disease Control and Prevention urges Americans to follow their latest quarantine and isolation recommendations if they know they've been exposed to the virus, but many find the guidelines confusing. Health experts understand why people are confused, as the evolving data continues to change CDC recommendations based on symptoms, testing and vaccination status. But the agency's director, Dr. Rochelle Walensky, said at a U.S. Senate committee hearing Monday that the updated guidelines are based on "over 100 studies collected over the past two years" and can help prevent further spread of the virus. For more on what you should do if you've been exposed to or tested positive for COVID-19, click the link in our bio. #covid