The Martha's Vineyard Hospital, Island Health Care and Martha's Vineyard boards of health have announced three flu vaccination clinics taking place on-Island Nov. 28-30.

The second all-Island seasonal flu clinic will be held on Saturday, Oct. 23 from 9 a.m. to noon at the Oak Bluffs School.

During the course of four hours on Saturday, 431 flu vaccines were administered at a clinic organized by the Island boards of health, Island Health Care and Martha’s Vineyard Hospital.