Meanwhile in the UK, England's cases are rising, especially in London.
Last month, unusual psittacosis case rises were reported from five European countries.
Meanwhile, 2 more cases are reported in suburban Chicago, including DuPage County's first since 2009.
The visitor to Los Angeles County had visited Universal Studios and several other public places.
Most imported cases this year occurred in US residents who were unvaccinated or had an unknown vaccination status.
Of the 113 measles cases in the US so far, 83 have been part of outbreaks.
Of US measles cases, 59% weren't vaccinated and immunization status wasn't known for 24%.
Rashes appeared 11 to 13 days after routine MMR vaccination.
In all of 2023, US cases of the vaccine-preventable disease totaled 58.
Also, the CDC warned about declining MMR coverage in US kindergarteners, underscoring a need to boost vaccine confidence and access.