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Paediatric Laboratory Medicine


The Division of Microbiology has played an important role over the past 60 years in many significant developments in the diagnosis and pathogenesis of childhood infectious diseases, still the dominant cause of morbidity and mortality in infancy and childhood. At the present time, the laboratory provides diagnostic services for a wide range of infections in children, from neonates, to healthy children with common infections, to the severely immunocompromised host (transplant, HIV patient) with both common and unusual bacterial, fungal, viral and parasitic infections. 

Complementing the main diagnostic sections of Bacteriology, Virology, Serology and Mycology, a comprehensive Molecular Microbiology section provides cutting edge rapid diagnostics for children with infectious diseases. The laboratory is also very active in teaching and research, with strong connections to the University of Toronto. 

The Microbiology Laboratory supports training programs for laboratory technologists, laboratory technicians, medical microbiology and pediatric infectious diseases residents. Research interests include viral respiratory infections, the microbiology of cystic fibrosis, the study of invasive fungal infections and related rapid diagnostics, Clostridium difficile infections in children, standards of practice for diagnostic paediatric microbiology, and the applications of molecular microbiology to paediatric infectious diseases.

Complete list of molecular microbiology tests

Complete list of serology tests


Respiratory Virus Watch  

The Respiratory Virus Watch Newsletter summarizes results of testing patient specimens for influenza and other viral respiratory pathogens at the Microbiology laboratory at The Hospital for Sick Children (SickKids). View the current issue as well previous issues here.


Diagnostic services

  • Bacteriology
  • Mycology
  • Virology
  • Serology
  • Molecular Microbiology
    bacteria, mycoplasmas, viruses, fungi
    qualitative and quantitative
    conventional, real time, multiplex


  • Medical laboratory technologists
  • Medical laboratory technicians
  • Medical Microbiology Residents
  • Paediatric Infectious Diseases Residents


  • Respiratory viral infections
  • Invasive fungal infections
  • Cystic fibrosis microbiology
  • Clostridium difficile infections in children
  • Standards of practice for diagnostic pediatric microbiology
  • Molecular microbiology as applied to pediatric infectious diseases