How Chlamydia Evolves into New Strains
The bacteria thatِ causeِ Chlamydia, theِ world’s mostِ common sexually transmitted disease, seemsِ to beِ sneakier thanِ onceِ thought, asِ a newِ study suggests itِ frequently exchanges DNA betweenِ different strains toِ form entirelyِ new strains.
whereِ moreِ than 1.3 million cases wereِ reported inِ 2010.
Scientists knowِ there areِ two groups ofِ Chlamydia strains, oneِ that seemsِ to infect theِ eyes andِ urinary-genital areas, andِ another set knownِ to spread throughِ theِ lymphatic system, whichِ isِ important toِ theِ body’s immune system.
However, little is known about how these different strains evolve and emerge.
Scientists recentlyِ discovered thatِ ifِ two Chlamydia strains co-infect theِ sameِ person atِ the sameِ time, theyِ canِ swap DNA byِ a process called recombination, lead researcher Dr.
Quiz: Test Your STD Smarts] Recombination wasِ originally thought onlyِ to affect a fewِ ‘hotspots’ withinِ theِ genome, Harris said.
If itِ didِ occur inِ the general population, current tests wouldِ notِ detect it.