Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.
Volume 32, Number 5—May 2026
Synopsis
Three Fatal Gestational Psittacosis Cases Caused by Chlamydia psittaci Strains Belonging to Closely Related Lineages, Japan
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.
1Current affiliation: Fukuoka University, Fukuoka, Japan.