KALISPELL, Mont. -

On Wednesday officials at the Flathead City-County Health Department confirmed three new cases of pertussis. The new cases include two adults, and an elementary school student at Fair Mont Egan in Kalispell.

The new cases bring the total number of confirmed cases in the county to 32 since the start of October. According to experts, there are four stages of the disease, and in the second, after five to 21 days, symptoms appear.

Health staff say vaccinations are the best way to prevent the spread of the illness in the future. Folks looking for more information can call the Flathead City-County Health Department at 406-751-8100.