Also, Utah now has 3 measles cases in unvaccinated adults.
The initial patient in Michigan's outbreak was exposed to a sick out-of-state traveler.
With 1,214 confirmed cases, the US is inching closer to the highest number of cases reported in a single year since the disease was eliminated from the country in 2000.
The group is expected to vote on thimerosal, despite no evidence of harm, and will discuss the MMRV use in young children.
In other developments, New Mexico reported another wastewater detection and South Dakota expanded MMR vaccine clinics after confirming two more infections.
Health officials across a wide swath of the country are probing exposures linked to air, rail, and bus travel.
In other developments, Dallas County has reported its first case since 2019, a vaccinated adult whose exposure is still under investigation.
Cases this year have almost topped the total in 2019.
New Mexico's health department today announced a positive measles sample in wastewater from Chaves County.
Also, Colorado reported 2 more cases, including another linked to airport exposure.