TOPICS: Chlamydia Trachomatis, Pneumoniae, Psittaci, STI, sexually transmitted infection, obligate intracellular, elementary bodies, reticulate bodies, lack muramic acid, Giemsa stain, NAAT, nucleic acid amplification test, serotype A, B, C, serotypes D-K, L1, L2, L3, hand-to-hand, Africa, trachoma, urethritis, PID, pelvic inflammatory disease, ectopic pregnancy, neonatal pneumonia, eosinophilia, conjunctivitis, lymphogranuloma venereum, painless genital ulcer, painful inguinal buboes, doxycycline, Reiter syndrome, Gonorrhoeae coinfection, aerosolized droplets, pneumonia, birds, ceftriaxone, azithromycin