The Body: The Complete HIV/AIDS Resource
Follow Us Follow Us on Facebook Follow Us on Twitter Download Our App 
Professionals >> Visit The Body PROThe Body en Espanol
Ask the Experts About

Choosing Your MedsChoosing Your Meds
Rollover images to visit our other forums!
  • Email Email
  • Glossary Glossary

Apr 27, 2012

hi doctor recently my friend did a chlamydia infection test it came with two results lgg psitive lgm negative what's the diffrence between them and if there is any other disease related to chlamydia thank u

Response from Dr. Young

Hello and thanks for posting.

Chlamydia infections generally come in two types, from two different species of bacteria. Chlamydia pneumonia causes respiratory tract infections, whereas Chlamydia trachomatis causes a sexually transmitted infection.

The tests results that you refer to are antibody tests-- the IgM is an antibody produced transiently after the initial exposure (in this case, to Chlamydia). IgM levels usually fade to negative in a month or two. IgG antibodies are produced shortly after the initial IgM phase and persist. They are indicative of previous exposure or infection, but not indicative necessarily of active illness.

We typically don't use antibody tests for Chlamydia, but rather use nucleic acid amplification or PCR tests to detect the live bacteria.


Insulin needle

  • Email Email
  • Glossary Glossary



This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.

Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.

Review our complete terms of use and copyright notice.

Powered by ExpertViewpoint