Positive Frei test
Intradermal chlamydial antigen
Nonspecific for all Chlamydia
No longer available (historical significance only)
Complement fixation test
Titer greater than 1:64 in active infection.
Convalescent titers no difference.
Cell culture of Chlamydia: Aspiration of fluctuant node yields highest rates of recovery.
Doxycycline, 100 mg PO, bid x 21 days (treatment of choice)
Erythromycin base, 500 mg PO, qid x 21 days
Aspirate fluctuant nodes
Incise and drain abscesses