Officials with the Wyoming Department of Health are urging people to make sure they are properly vaccinated against measles.

A multi-state outbreak of measles starting in California has now spread to Utah, Colorado and Nebraska, all states that border Wyoming..

Dr Wendy Braund, state health officer and Public Division senior administrator with the department, says that raises concerns about an outbreak in Wyoming. The last known cases of measles in Wyoming was reported in 2010.

She says people who have never been vaccinated or have had only one dose of the MMR ( measles,mumps,rubella) and have never had the disease are at risk. Braund says studies show that 97 percent of those who have had two doses of the MMR vaccine are protected.

Because vaccinations are required by schools in the state, most Wyoming students have received the required vaccinations.

Measles is highly contagious. Symptoms typically include fever, runny nose, cough, red eyes and sore throat. Those symptoms are typically followed by a rash, and the disease can lead to more serious complications, including pneumonia.