With state approval of booster doses for Moderna and Johnson & Johnson vaccines, North Central Public Health District says it is ready to vaccinate large numbers of people in the coming weeks and months.  NCPHD has reopened its vaccination clinics at the Fort Dalles Readiness Center, and eight clinics are planned through mid-December, starting this Thursday from noon to 6 p.m.  People can book their own appointment by visiting.ncphd.org/book-vaccine or calling the health district at 541-506-2600, or Mid-Columbia Senior Center at 541-296-4788.   Those who are eligible for the Moderna booster include people 65 and older, anyone 18 and older living in a long-term care facility, those 18 and older with underlying medical conditions or increased risk of social inequalities, and anyone age 18 to 49 at risk for COVID because of occupational or institutional setting.  Moderna boosters are available six months after their second dose.  Johnson and Johnson booster doses are available to anyone who has received that vaccine, and can be given two months after the vaccine.