Douglas, Deschutes and Clackamas counties also asked for National Guard support for events. Wasco County asked for a facility where they can do a mass vaccination event. Multnomah County filed a request sent to them by Kaiser Permanente for National Guard support. Kaiser plans to begin mass vaccinations at the Oregon Convention Center next week, said spokesman Michael Foley. The events will involve people in phase 1a of the state's vaccine distribution plan and will not be open to the public. Portland's biggest hospitals are working together now to help get as many shots as possible to people in the 1a category.