Communicable Diseases & Conditions

Measles Clarification

Recent measles activity and press reports have resulted in questions regarding MMR vaccination and the possible need for additional doses for certain populations. The information below is intended to help clarify MMR vaccine recommendations for adults.

Please note, the recommendations to protect adults against measles has not changed from the ACIP MMR Recommendations statement was published in 2013. The current recommendations can be found at:

Recommendations: One dose of MMR or measles containing vaccine received on or after the first birthday, or other presumptive immunity, is sufficient for most* U.S. adults born on or after 1957.

Other presumptive evidence of measles immunity includes:

• Birth before 1957

• Laboratory evidence of immunity

• Laboratory confirmation of disease

Clarification of recommendations:

• There is no recommendation for an adult catch-up program for persons born before 1989. Those born since 1989 likely would have been required to have 2 doses of a measles containing vaccine for school attendance.

• There is no current recommendation for vaccination campaigns among adults or individuals in non-affected areas to prevent measles outbreaks

For international travel, talk to your provider about mumps 6-11 months before you leave.


The Gallatin City-County Health Department’s Communicable Disease Program works to prevent, identify, and limit the spread of those diseases that can be passed from one person to another. Working together with area health care providers, our team investigates and tracks individual cases to prevent them from spreading further. We also aim to determine the source of an infection, identify contacts, and provide education to the general public.

What is a communicable disease?

A communicable disease is defined as an infectious disease that can be transmitted between persons and species through either direct or indirect transmission or other vectors (animals & insects.)

Some communicable diseases in our community include:



For more information on these and other communicable diseases, see


To see what has been reported this week, check out our weekly reports for Gallatin County.



Are you a health care provider needing to report a confirmed or suspect case of a communicable disease?  Please call 406-582-3100.

If you need to reach the Gallatin City-County Health Dept after hours to report an urgent public health matter, call the Gallatin County Sheriff’s office at 582-2100, ext. 2