There are still a few pertussis cases appearing each week, but far less than in the past few months, says Ellen Leahy, Director of the Missoula City County Health Department
The measles outbreak across the nation is growing, but so far, Montana has been spared, however, health officials are keeping watch for any cases that may appear.
Western Montana health officials are waiting to see if anyone in the state is diagnosed with measles, since some cases were reported in neighboring Idaho.
A measles outbreak that appears to have started at Disneyland in California has spread north, and has now been diagnosed in at least one state bordering Montana.
The so-called "anti-vaccination" movement is causing a destructive rise in the frequency of certain diseases, like measles, that the U.S. had all but eradicated.