Teton County, Wyo. COVID-19 vaccine registration now open for Phase 1c Subgroups JACKSON, Wyo. (KIFI) – Teton County Health Department has now opened registration for both the employment and higher risk population-based Phase 1c groups. Individuals who qualify for the COVID vaccine in Phase 1c through either (1) the higher risk population-based groups or (2) through their employment can now add themselves to the registration list. Health officials will use this information to allocate appointments for the COVID-19 vaccine beginning the second week of March. Individuals will be randomly selected from the registration list weekly depending on vaccine availability. The population groups that can now register include: