Mpox outbreak "not over," warns CDC, amid "ongoing community transmission"

America's mpox outbreak "is not over" and could see a resurgence over the coming months, the Centers for Disease Control and Prevention said Monday, ramping up their warnings after reports of "ongoing community transmission" of the virus around the country. 

The CDC's new alert for doctors and health authorities comes ahead of new vaccine effectiveness data expected to be released by the agency. 

It also follows a cluster of infections in the Chicago area from mpox, formerly called monkeypox, many in fully vaccinated residents. While none were hospitalized, potentially thanks to their two doses, authorities are now investigating a range of potential explanations for the breakthrough cases.