CHEYENNE, Wyo. (AP) — A report from the U.S. Centers for Disease Control and Prevention shows a jump in the number of reported chlamydia cases in Wyoming since 2007.

Wyoming Department of Health STD program manager Canyon Hardesty tells the Wyoming Tribune Eagle ( ) the increased rates were due to an improved screening process and low-cost testing vouchers that were made available in mid- 2010. Hardesty also says the Midwest typically has higher case rates of chlamydia than other parts of the U.S.

The CDC says about 1.3 million cases of chlamydia were reported in the U.S. 2010, including 2,132 in Wyoming. The state had 1,207 reported cases in 2007. It says Wyoming has the 26th-highest rate of chlamydia infections in the U.S. The state was ranked 44th in 2007.