AUSTIN, Texas (AP) -- The House has passed a bill requiring youngsters' registration in a state immunization registry, unless parents elect not to participate. The current system lets parents opt-into ...

All states currently operate immunization information systems (IISs) to track vaccination information. Historically, these systems have focused primarily on capturing data for childhood immunizations.

Q: Our health care facility has just started mandating vaccines and we are finding that a number of our employees have misplaced their vaccine cards. Our facility is an authorized user of IRIS ...