Microbiological treatment failure associated with macrolide-resistant Bordetella pertussis

David Prabhakar1, Winkie Fong2,3, Eby M Sim2,3

  • 1Microbiology and Infectious Diseases, Children's Hospital at Westmead, Sydney, New South Wales, Australia.

ASM Case Reports
|November 17, 2025
PubMed
Abstract

Insights

Macrolide-resistant *Bordetella pertussis* (MRBP) is increasing globally. This study details a severe pertussis case in an infant resistant to azithromycin, highlighting the need for susceptibility testing.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Genomics

Background:

  • Pertussis (whooping cough) cases are rising globally, even with vaccination.
  • The emergence of macrolide-resistant *Bordetella pertussis* (MRBP) complicates treatment.
  • This study focuses on a severe pertussis case involving MRBP.