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Volume 31, Number 6—June 2025

Dispatch

Dual-Genotype Orientia tsutsugamushi Infections, Hainan Island, China, 2023

Yi Niu1, Siqi Chen1, Gaoyu Wang, Yijia Guo, Nan Ge, Xiaoyuan Hu, Chuanning Tang, Ruoyan Peng, Xiuji Cui, Biao Wu, Bo Wang, Yueping Wang, Dachuan Lin, Yongguo Du, Jasper Fuk-Woo Chan, Long Sun, Kwok-Yung Yuen2, Liyuan Zhang2, and Feifei Yin2Comments to Author 
Author affiliation: Hainan Medical University, Haikou, China (Y. Niu, S. Chen, G. Wang, Y. Guo, N. Ge, X. Hu, C. Tang, R. Peng, X. Cui, B. Wu, B. Wang, Y. Wang, D. Lin, Y. Du, L. Sun, L. Zhang, F. Yin); University of Hong Kong, Hong Kong, China (J. F.-W. Chan, K.-Y. Yuen)

Main Article

Figure

Phylogenetic analysis of Orientia tsutsugamushi based on partial 56-kDa type-specific antigen gene sequences from a study of dual-genotype O. tsutsugamushi infections, Hainan Island, China, 2023. Phylogenetic tree was constructed using partial gene sequences from whole blood samples of 3 patients with scrub typhus (red asterisks) and reference sequences representing dominant genotypes retrieved from GenBank (accession numbers indicated). We performed the analysis with MEGA X software (https://www.megasoftware.net) using the maximum-likelihood method and 1,000 bootstrap replicates. Color shading and vertical bars at right indicate genotypes.

Figure. Phylogenetic analysis of Orientia tsutsugamushi based on partial 56-kDa type-specific antigen gene sequences from a study of dual-genotype O. tsutsugamushi infections, Hainan Island, China, 2023. Phylogenetic tree was constructed using partial gene sequences from whole blood samples of 3 patients with scrub typhus (red asterisks) and reference sequences representing dominant genotypes retrieved from GenBank (accession numbers indicated). We performed the analysis with MEGA X software (https://www.megasoftware.net) using the maximum-likelihood method and 1,000 bootstrap replicates. Color shading and vertical bars at right indicate genotypes.

Main Article

1These authors contributed equally to this article.

2These authors contributed equally to this article and are co–senior authors.

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