Second vaccine shots for large group of seniors could limit distribution of first doses Second vaccine shots for large group of seniors could limit distribution of first doses By Lynn Kawano | February 8, 2021 at 4:38 PM HST - Updated February 9 at 7:01 AM HONOLULU, Hawaii (HawaiiNewsNow) - Hawaii seniors 75 and older who got COVID vaccines at large distribution sites in Hawaii will soon get their second doses and thatâs putting a squeeze on supplies. It has been 21 days since kupuna started getting their first doses of the COVID vaccines at vaccination sites on Oahu and the Neighbor Islands. Those who got the Pfizer branded vaccine will be due for second doses starting this week; Moderna recipients will start getting second doses next week.