Collin County establishes 4 hubs for COVID-19 vaccine deployment Collin County establishes 4 hubs for COVID-19 vaccine deployment The vaccinations are by appointment only. Photo courtesy of ABC13 Collin County is getting it together with its COVID-19 vaccine plan, establishing four hubs to provide vaccinations, by appointment only. According to a release, the four sites have been approved by the Texas Department of State Health Services (DSHS), as follows: Collin County Health Care Services (CCHCS) received 2,000 doses of the Moderna vaccine this week and is currently operating a vaccine hub at the CCHCS clinic in McKinney. Appointments have already been made for these 2,000 doses from the Collin County vaccine wait list. The CCHCS hub will relocate to Plano ISD's John Clark Stadium next week.