Chlamydia trachomatis infection (genital) (Chlamydia trachomatis) Including Lymphogranuloma venerum (LGV)

Clinical Criteria

Any person with at least one of the following clinical forms:

Chlamydial infection non-LGV

At least one of the following ten:

— Urethritis;

— Epididymitis;

— Pelvic inflammatory disease;

— Acute salpingitis;

— Acute endometritis;

— Cervicitis;

— Proctitis;

— Purulent conjunctivitis;

— Reactive arthritis;

— Perihepatitis.

In newborn children at least one of the following two:

— Conjunctivitis;

— Pneumonia.

LGV

At least one of the following five:

— Urethritis;

— Genital ulcer;

— Inguinal lymphadenopathy;

— Cervicitis;

— Proctitis/proctocolitis.

Laboratory Criteria

Chlamydial infection non-LGV

At least one of the following three:

Isolation of Chlamydia trachomatis from a clinical specimen.
Detection of Chlamydia trachomatis by direct fluorescent antibody (DFA) test in a clinical specimen
Detection of Chlamydia trachomatis nucleic acid in a clinical specimen

LGV

At least one of the following two:

AND

Epidemiological Criteria

An epidemiological link by human to human transmission (sexual contact or vertical transmission)

Case Classification

A. Possible case

B. Probable case

Any person meeting the clinical criteria with an epidemiological link

C. Confirmed case

Any person meeting the laboratory criteria

Last Updated: 22 November 2022