Superintendent: Criticism of Darien teacher absences due to COVID vaccine side effects 'unfortunate and disappointing' Susan Shultz FacebookTwitterEmail Darien Superintendent of Schools Alan Addley and Darien teachers' union president, Joslyn Delancey, get vaccinated against the coronavirus March 6, at Town Hall in Darien.Erik Trautmann / Hearst Connecticut Media DARIEN — Three town schools reopened Tuesday after all classes and activities were canceled the previous day due to staff shortages related to side effects from the COVID vaccine, the superintendent said. Schools Superintendent Alan Addley said the staff absences were “nearly exclusively attributable to feeling ill after the second vaccination.” Darien teachers and staff members received their second Moderna vaccine on Saturday in a town clinic.