Data from the CDC indicate that retesting rates for chlamydia within 3 months after treatment for the infection  appear to be low. The retesting rate was 60.1% for pregnant women from 2008 to 2010, but only 22.0% of these women received a test-of-cure within the recommended 4 weeks. The authors noted that interventions are needed to increase adherence to recommendations for retesting in both men and women who have positive chlamydia test results.

Abstract: Clinical Infectious Diseases, January 1, 2013.