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Antimicrobial Resistance (AMR) Surveillance in Public Hospitals and Clinics - Hospital Authority AMR Data (2023)

Release date: 30 January 2026

Background

The HKSAR Government attaches great importance to the threat of antimicrobial resistance (AMR). A High Level Steering Committee (HLSC) chaired by the Secretary for Health has been established to formulate strategies and implement actions to combat AMR in Hong Kong. The second Hong Kong Strategy and Action Plan on Antimicrobial Resistance (2023-2027) (Action Plan) was issued in November 2022.

The Action Plan sets out monitoring of situation of AMR as one of the strategic actions. Strategic intervention 1.2.1 of the Action Plan recommended to continue AMR surveillance based on the Global Antimicrobial Resistance Surveillance System (GLASS), developed by the World Health Organization (WHO). As such, microbiological data with antimicrobial susceptibility test (AST) results of patients from public hospitals and clinic of the Hospital Authority (HA) were collected and analysed. Since the first Action Plan on AMR was published in 2017, the situation of 2016 has been chosen as the baseline for comparison.

This is the seventh report which includes the findings of blood, urine, stool, cerebrospinal fluid and lower respiratory specimens from year 2016 to 2023.


Key Findings

From 2016 to 2023, the percentage of patients with positive blood cultures remained stable at around 9-11%. Escherichia coli, Klebsiella pneumoniae, and Staphylococcus aureus were the most common organisms. The findings present a mixed landscape of antimicrobial resistance; despite some improvements, there are significant and concerning increases in resistance for several key pathogens, including rising carbapenem resistance.

  • Escherichia coli: While susceptibility to community and hospital-onset cefepime and community-onset ceftazidime has improved, non-susceptibility to community and hospital-onset ertapenem and community-onset cefotaxime has significantly increased.
  • Klebsiella pneumoniae: Non-susceptibility to carbapenems like imipenem (community and hospital-onset), meropenem, and ertapenem is rising significantly in hospital settings, while other antibiotics show stable trends.
  • Staphylococcus aureus: Oxacillin non-susceptibility remains stably high, with non-susceptibility rates consistently around 55% for hospital-onset and 35-40% for community-onset infections.
  • Acinetobacter species: Shows a significant rise in non-susceptibility to key antimicrobials like carbapenems, gentamicin, and amikacin in hospitals.
  • Non-typhoidal Salmonella species: Susceptibility to co-trimoxazole is improving, but ampicillin non-susceptibility is significantly increasing in the community.
  • Streptococcus pneumoniae: Demonstrates a significant increasing non-susceptibility trend to both penicillin and cefotaxime in community-onset infections.
  • Pseudomonas aeruginosa: Imipenem non-susceptibility is on the rise, especially in hospital settings, while other antipseudomonal agents remain stable.
  • Haemophilus influenzae: Non-susceptibility to ampicillin and amoxicillin/clavulanate in the community has remained stable despite yearly fluctuations.


Key Findings

From 2016 to 2023, the percentage of patients with positive urine cultures remained stable at around 14-15%. Escherichia coli was the most common organism. The findings present a mixed landscape of antimicrobial resistance; while non-susceptibility to some antibiotics like co-trimoxazole has decreased, there are significant and concerning increases in non-susceptibility to amikacin for both Escherichia coli and Klebsiella pneumoniae, and to meropenem for K. pneumoniae.

  • Escherichia coli: While community and hospital-onset non-susceptibility to co-trimoxazole, gentamicin, and nitrofurantoin decreased, non-susceptibility to amikacin increased significantly for both community and hospital-onset cases.
  • Klebsiella pneumoniae: While community and hospital-onset co-trimoxazole non-susceptibility decreased, non-susceptibility to community and hospital-onset amikacin and hospital-onset meropenem increased significantly.


Key Findings

From 2016 to 2023, the percentage of patients with positive stool cultures remained stable at around 10%. Non-typhoidal Salmonella species was the most common organism. The findings present a mixed landscape of antimicrobial resistance; while non-susceptibility to co-trimoxazole in Shigella species has decreased, there are significant and concerning increases in non-susceptibility to ciprofloxacin, ceftriaxone, and co-trimoxazole for non-typhoidal Salmonella species.

  • Non-typhoidal Salmonella species:
    • Non-susceptibility to community-onset ciprofloxacin, ceftriaxone, and co-trimoxazole all showed significant increasing trends from 2016-2023, with ciprofloxacin non-susceptibility being particularly high.
  • Shigella species:
    • Non-susceptibility to co-trimoxazole in community-onset infections showed a significant decreasing trend from 2016-2023.


Key Findings

From 2020 to 2023, the percentage of patients with positive cerebrospinal fluid cultures remained stable at less than 2%. No single WHO priority pathogens remained consistently dominant. According to the WHO GLASS manual, susceptibility results for cerebrospinal fluid cultures are not reported, as all pathogen-antimicrobial combinations had fewer than 10 antimicrobial susceptibility testing results.



Key Findings

From 2016 to 2023, the percentage of patients with positive lower respiratory cultures remained stable at around 45%. Pseudomonas aeruginosa and Staphylococcus aureus were the most common organisms. The findings present a mixed landscape of antimicrobial resistance; while decreases in non-susceptibility were observed for some pathogens, such as oxacillin-resistant Staphylococcus aureus and co-trimoxazole-resistant E. coli, there were significant and concerning increases in non-susceptibility for Acinetobacter species, Pseudomonas aeruginosa, and penicillin-resistant Streptococcus pneumoniae.

  • Escherichia coli: Non-susceptibility to co-trimoxazole has significantly decreased in both community and hospital settings.
  • Klebsiella pneumoniae: While community and hospital-onset co-trimoxazole non-susceptibility has decreased, non-susceptibility to hospital-onset cefepime has increased.
  • Staphylococcus aureus: Non-susceptibility to oxacillin has shown a statistically significant decrease for both community and hospital-onset cases.
  • Acinetobacter species: There are significant increasing trends in non-susceptibility to community and hospital-onset imipenem and hospital-onset gentamicin.
  • Pseudomonas aeruginosa: Significant increasing trends in non-susceptibility are observed for community and hospital-onset ceftazidime, gentamicin, and hospital-onset piperacillin/tazobactam.
  • Haemophilus influenzae: While community and hospital-onset co-trimoxazole non-susceptibility has decreased, non-susceptibility to community and hospital-onset ampicillin, amoxicillin/clavulanate, and hospital-onset levofloxacin has increased.
  • Streptococcus pneumoniae: Community-onset penicillin non-susceptibility is increasing, while community and hospital-onset cefotaxime non-susceptibility is decreasing.

Acknowledgement

We would like to acknowledge stakeholders from HA, including the Information Technology & Health Informatics Division, Quality and Safety Division, Strategy and Planning Division, and various Working Groups for the provision of input and comment to facilitate the compilation of findings for the year 2023.