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Volume 31, Number 1—January 2025
Dispatch

Invasive Group B Streptococcus Infections Caused by Hypervirulent Clone of S. agalactiae Sequence Type 283, Hong Kong, China, 20211

Carmen Li2, Herman Tse2, Chendi Zhu, Garnet Kwan Yue Choi, Alfred Lok-Hang Lee, Jun Yang, Norman Wai-Sing Lo, Daisy Tsz-Yung Hui, Christina Kin-Yi Chow, Sandy Ka-Yee Chau, Jimmy Lam, Kristine Luk, Tak-Lun Que, Kitty Sau-Chun Fung, Cindy Tse, Sally Cheuk-Ying Wong, David Christopher Lung, Viola Chi-Ying Chow, and Margaret IpComments to Author 
Author affiliation: The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China (C. Li, C. Zhu, J. Yang, N.W.-S. Lo, M. Ip); Khoo Teck Puat Hospital, Singapore (H. Tse); Hong Kong Children’s Hospital, Hong Kong (G.K.Y. Choi, S.C.-Y. Wong, D.C. Lung); Prince of Wales Hospital, Hong Kong (A.L.-H. Lee, V.C.-Y. Chow); Queen Elizabeth Hospital, Hong Kong (D.T.-Y. Hui, C.K.-Y. Chow, S.C.-Y. Wong, D.C. Lung); United Christian Hospital, Hong Kong (S.K.-Y Chau, K.S.-C. Fung); Pamela Youde Nethersole Eastern Hospital, Hong Kong (J. Lam); Princess Margaret Hospital, Hong Kong (K. Luk); Tuen Mun Hospital, Hong Kong (T.-L. Que); Kwong Wah Hospital, Hong Kong (C. Tse)

Main Article

Figure 1

Invasive group B Streptococcus (GBS) infection incidence from September 2–November 6 (weeks 35–44), 2021, in 17 public hospitals across Hong Kong, China. The gray dotted line indicates the weekly mean number of invasive GBS infections for the same weeks in 2019. *Environmental sampling for GBS occurred during week 39 at local wet markets, and during week 40, a special bulletin was issued to raise public awareness of the upsurging cases. ST, sequence type.

Figure 1. Invasive group B Streptococcus (GBS) infection incidence from September 2–November 6 (weeks 35–44), 2021, in 17 public hospitals across Hong Kong, China. The gray dotted line indicates the weekly mean number of invasive GBS infections for the same weeks in 2019. *Environmental sampling for GBS occurred during week 39 at local wet markets, and during week 40, a special bulletin was issued to raise public awareness of the upsurging cases. ST, sequence type.

Main Article

1Preliminary results from this study were presented at the 3rd ISSAD (International Symposium on ‘Streptococcus agalactiae’ Disease); October 16–18, 2023; Rio de Janeiro, Brazil.

2These first authors contributed equally to this article.

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