Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link

Volume 31, Number 9—September 2025

Dispatch

Rapidly Progressing Melioidosis Outbreak in City Center Zoo, Hong Kong, 2024

Christopher J. Brackman1, Ivan Tak-Fai Wong1, Allen S.L. Chan1, Patrick C.K. Pun, Dorothy Hong-Ting Cheung, Anne C.N. Tse, Carlton P.M. Yuen, Pierra Y.T. Law, Wing-Yin Tam, Franklin Wang-Ngai ChowComments to Author , Gilman Kit-Hang Siu, and Thomas Hon-Chung SitComments to Author 
Author affiliation: Government of the Hong Kong Special Administrative Region, Hong Kong, China (C.J. Brackman, A.S.L. Chan, P.C.K. Pun, A.C.N. Tse, C.P.M Yuen, P.Y.T. Law, T.H.-C. Sit); Polytechnic University, Hong Kong (I.T.-F. Wong, D.H.-T. Cheung, W.-Y. Tam, F.W.-N. Chow, G.K.-H. Siu)

Main Article

Figure 3

Spatial distribution and genetic relationships among Burkholderia pseudomallei STs reported in China and a rapidly progressing melioidosis outbreak in city center zoo, Hong Kong, 2024. Colored circles on map show locations where different STs were reported; sections indicate relative percentages of each ST in each location. Red numbers on the phylogenetic tree indicate core-genome single-nucleotide polymorphism differences between strains; black numbers represent bootstrap values. The tree is midpoint rooted. The reference genome used for comparison is a pseudogenome constructed by concatenating the first allele of each core-genome multilocus sequence typing gene available in the PubMLST database (https://pubmlst.org). Scale bar indicates nucleotide substitutions per site. ST, sequence type.

Figure 3. Spatial distribution and genetic relationships among Burkholderia pseudomallei STs reported in China and a rapidly progressing melioidosis outbreak in city center zoo, Hong Kong, 2024. Colored circles on map show locations where different STs were reported; sections indicate relative percentages of each ST in each location. Red numbers on the phylogenetic tree indicate core-genome single-nucleotide polymorphism differences between strains; black numbers represent bootstrap values. The tree is midpoint rooted. The reference genome used for comparison is a pseudogenome constructed by concatenating the first allele of each core-genome multilocus sequence typing gene available in the PubMLST database (https://pubmlst.org). Scale bar indicates nucleotide substitutions per site. ST, sequence type.

Main Article

1These authors contributed equally to this article.

Page created: July 17, 2025
Page updated: August 26, 2025
Page reviewed: August 26, 2025
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external