Eighty-six percent of cases have been linked to one of 38 reported outbreaks.
National data-collection and reporting system addresses measles surveillance gap, the authors say.
Earlier this month, RFK Jr said he does not believe the federal government should mandate any vaccine.
Also, Georgia reports a new case in an unvaccinated person with multiple public exposures in Fulton County.
Utah officials confirm a measles outbreak linked to a large high school cycling event.
South Carolina officials say this is the state's third measles case this year.
The 2 cases add to what is the worst year for measles in the US since the disease was declared eliminated in 2000.
In other developments, the CDC reschedules a clinician's update on measles as 2 states announce a few new cases.
Two people have been hospitalized in Wisconsin's outbreak centered in Oconto County.
Less than half (43%) of all articles were published by mainstream news services.
