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Three Fatal Gestational Psittacosis Cases Caused by Chlamydia psittaci Strains Belonging to Closely Related Lineages, Japan
Atsuko Nishino, Yukiko Nakura, Yukiko Sassa-O’Brien, Momoko Soeda, Hirokazu Sugii, Kanako Shimizu, Shiro Miura, Yumiko Sato, Michinobu Yoshimura
1, Michiko Kodama, and Itaru Yanagihara
Author affiliation: Research Institute, Osaka Women’s and Children’s Hospital, Osaka, Japan (A. Nishino, Y. Nakura, M. Yoshimura, I. Yanagihara); The University of Osaka, Osaka, Japan (A. Nishino, M. Kodama, I. Yanagihara); Tokyo University of Agriculture and Technology, Tokyo, Japan (Y. Sassa-O’Brien); NHO Nagasaki Medical Center, Nagasaki, Japan (M. Soeda, S. Miura); NHO Iwakuni Clinical Center, Yamaguchi, Japan (H. Sugii, Y. Sato); Tannan Health Welfare Center, Fukui, Japan (K. Shimizu); Maizuru Kyosai Hospital, Kyoto, Japan (K. Shimizu)
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Figure 3

Figure 3. Phylogenetic analysis of the OmpA protein and ompA gene of Chlamydia psittaci in study of 3 fatal gestational psittacosis cases caused by C. psittaci strains belonging to closely related multilocus sequence typing lineages, Japan, 2017–2024. Red text indicates gestational psittacosis cases from in this study (FO-01, YO-02, and NO-03). A) Circular phylogenetic tree of the OmpA protein of 200 strains. Blue indicates representative C. psittaci strains. B) Phylogenetic tree of the ompA gene of the 3 strains from this study and representative C. psittaci genotypes. Scale bar indicates nucleotide or amino acid substitutions per site.
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Page created: April 01, 2026
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