Table 2

Chlamydia trachomatis genotypes in relation to epidemiological data

Study IDSexAge at T0Time T0–T1 (days)T0–T1
ompA genovars
Treatment T0 index_partnerNo. of recent partners
T0 and T1*
Possible explanation repeat infection at T1†
Concordant C trachomatis genotypes
 1F19197D_D12a_12a?_no2?R or P
 2F29237D_D365_365?_???R or P
 5F23200E_E364_364?_?5?R or P
 6M20243I_I25b_25b?_?3?R or P
 8F31167F_F62b_62byes_ ?11_1TF or R
Discordant single locus variant C trachomatis genotypes
Discordant multilocus variant C trachomatis genotypes
 22F28197E_F358_12dyes_ NA9?N
  • Cases 7–9, 11, 12, 13 and 23–27 pertained to the CRI study and all others to the CSI study.

  • *Number of partners in the 6 months before T0 respectively T1; second number after underscore at T1: number of partners among those who were already partners before T0.

  • †Possible outcome at T1: R, recurrent infection by same partner; P, persistent infection without treatment.

  • ‡NA, not applicable: no sex after T0 treatment with regular partner.

  • CRI, Chlamydia Retest Implementation; CSI, Chlamydia Screening Implementation; MLST, multilocus sequence typing; TF, treatment failure; N, new infection by same or new partner.