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ST. LOUIS, MO (KTVI) – A new federal report shows St. Louis had the highest rate of chlamydia among major US cities last year. The city also had the second-highest rate of gonorrhea infections.

Health officials with the CDC say the high rate of STD’s is due to a lack of information.  Many people don’t know they’re infected  because many times they show no symptoms.

The City of St. Louis says the CDC data is confusing.  They point out that just like crime data the City of St. Louis is listed as a stand-alone county.  They say this skews the numbers.

“St. Louis and Baltimore are the only cities not within a county therefore ranking St. Louis City in comparison to all others in the CDC report is comparing apples to oranges.” said  City of St. Louis Department of Health Director Pam Walker in a statement to the media.

The city also says that, “For 2013 compared to 2012 chlamydia and gonorrhea are slightly up but compared to our highest  most recent  high year of 2011 they are both down 11%.”