HCC Uses Innovative Prevention Efforts To Curb Overdose, Drug Abuse Expand The Hamilton County Coalition has been a pillar in Chattanooga and other Southeast Tennessee communities in providing prevention resources for overdose, substance abuse disorder, and more. As Hamilton County Coalition entered its 11th year of operation at the beginning of 2020, its staff, directors, and partners had developed a procedural way of accomplishing their goals. But when COVID-19 shutdowns began locally in mid-March, many of these standards were deemed unsafe. âBeing inside the communities we serve to build relationships and understand their needs has been our best method to enact positive change, so we had to make a lot of difficult decisions on how to move forward safely and effectively in a time where COVID-19 cases and overdose rates were devastating many of our communities,â Hamilton County Coalition Executive Director Camilla Bibbs-Lee said.