Scrub typhus also known as bush typhus, is an emerging infectious disease caused by a bacteria called Orientia tsutsugamushi
Q fever is caused by the intracellular bacterium Coxiella burnetii and is endemic in nearly every country in the world.
Obligate intracellular bacteria cannot be grown in artificial media (agar plates/broths) in laboratories but requires viable eukaryotic host cells.
Chlamydia trachomatis, is an obligate intracellular bacteria which causes pelvic inflammatory disease and other infections (e.g. eye).