HAYDEN, Idaho --- Health officials said there is an increase of gonorrhea cases in northern Idaho.

The Panhandle Health District said five counties have had a 115 percent increase in cases this year. That's compared to the same time period in 2016.

The PHD said most people with the sexually-transmitted disease are between the ages of 20 and 29. It is encouraging people who are sexually active to get tested.

“Case investigations point to several causes, including online dating, limited sex education and unprotected sex,” Jeff Lee, a PHD Epidemiologist said in a release. “There is not a single factor that attributes to the increase, but we do know that getting tested on a regular basis and using protection can help reverse this trend and improve community health.”

Most types of gonorrhea can be treated with antibiotics. If it is not treated, it can cause major health issues like pelvic inflammatory disease, ectopic pregnancy, and infertility.