Popov V L, Shatkin A A, Pankratova V N, Smirnova N S, von Bonsdorff C H, Ekman M R, Mörttinen A, Saikku P
Gamaleya Institute for Epidemiology and Microbiology, Academy of Medical Sciences of the U.S.S.R., Moscow.
FEMS Microbiol Lett. 1991 Nov 15;68(2):129-34. doi: 10.1016/0378-1097(91)90115-q.
The electron microscopic appearance of Chlamydia pneumoniae elementary bodies with pear-shaped, loose outer membrane has been suggested as one criterion of its classification as a new chlamydial species. The study of the original strain TW 183 in LCL 929 and HL cells and a low-passage isolate of Kajaani-6 isolate in HL cells revealed spherical compact elementary bodies common to other chlamydia.