Ariel Parrella-Aureli writes: “As the city doles out coronavirus shots to seniors and frontline workers, some people who have public-facing jobs are confused as to why they’re being excluded. During Phase 1B of the city’s vaccination campaign, people 65 and older; frontline workers, like grocery store employees and teachers; and health care workers are eligible for the vaccines. Librarians, backed by a number of progressive aldermen, have made a push to be included in Phase 1B of the city’s vaccination campaign. They argue they’ve been expected to work in person since June, but they’re not slated to get vaccinated until appointments open to other essential workers in Phase 1C, expected to begin March 29.”