The company barely existed a year ago. Now, Curative is running half of the stateâs mass vaccination sites California-based firm hits some bumps as it prepares to open Dartmouth clinic By Kay Lazar and Anissa Gardizy Globe Staff,Updated February 23, 2021, 9:08 p.m. Email to a Friend Employees of a cleaning company arrived at the front entrance of a former Circuit City in Dartmouth Monday morning, two days before Curative was slated to transform it into a mass vaccination site.David L. Ryan/Globe Staff The nine employees of a fledgling California company called Curative were developing a new test for sepsis when the first case of COVID-19 was reported in the United States in