Massachusetts Rebuffs RFK Jr. With Northeast Vaccine Accord

A healthcare worker prepares a dose of the Pfizer-BioNTech Covid-19 vaccine in Boston.

Photographer: Adam Glanzman/Bloomberg

Massachusetts is forming a coalition of Northeast states to issue vaccine recommendations that may conflict with those from the federal government, escalating a clash between states and the Trump administration over public health policy.

Governor Maura Healey of Massachusetts announced the initiative on Thursday as part of a broader push to guarantee access to vaccines for state residents amid dramatic shifts in the national policy under Health and Human Services Secretary Robert F. Kennedy, Jr., a vocal vaccine critic.