In US developments, New Jersey health officials are tracking transit exposures linked to the state's latest confirmed case.
In other developments, Wisconsin has 5 more cases from Oconto County and Pennsylvania's health department warned of exposure in 4 counties visited by a sick out-of-state traveler.
Lack of links to earlier cases and no travel history suggest measles may be spreading in the northern part of the state.
The patient likely contracted plague from a flea bite while camping near South Lake Tahoe.
Also, Colorado reports a second infection in Mesa County, and, in Montana, the first case in decades is reported near Helena.
762 cases of measles have been confirmed in West Texas since late January.
One of two circulating genotypes has been identified in Mennonite groups in eight countries, including the US, Canada, and Mexico.
A new infection in an unvaccinated child raises Colorado's 2025 total to 17.
The program, which has battled tickborne disease since 1906, will now round-up stray livestock for preventive screwworm treatment.
France has now reported 63 local chikungunya cases from 16 different administrative units.