Fig. 2From: Treatment efficacy of azithromycin 1 g single dose versus doxycycline 100 mg twice daily for 7 days for the treatment of rectal chlamydia among men who have sex with men – a double-blind randomised controlled trial protocolAlgorithm for defining repeat infection. PCR = polymerase chain reaction, WGS = whole genome sequencing, mRNA = messenger ribonucleic acidBack to article page