[Adolescents and chlamydia: cervix microbiology among adolescents; the first statistics of the family planning centers according to the Calmat law].

Infertility due to Chlamydia trachomatis infection can be prevented by systematic screening of low genital tract infection. This screening is to be done systematically in women < 25 years old in Family Planning Centers. In France, according to Calmat's low, screening and treatment are anonymous and free of charges for adolescents and people without National Health care. In a foreseeable future, screening will be done for both sexes, by PCR or LCR, on first void urines.