Evolution of Staphylococcus aureus in Cystic Fibrosis Patients
Author Information
Author(s): McAdam Paul R., Holmes Anne, Templeton Kate E., Fitzgerald J. Ross
Primary Institution: The Roslin Institute and Centre for Infectious Diseases, Royal (Dick) School of Veterinary Studies, University of Edinburgh
Hypothesis
The molecular adaptation of Staphylococcus aureus to its host during chronic infection is not well understood.
Conclusion
The study reveals significant genetic variation in Staphylococcus aureus isolates from a cystic fibrosis patient, indicating a heterogeneous infecting population that evolved from a single strain.
Supporting Evidence
- The study provides a genome-wide insight into the evolution of S. aureus during chronic infection.
- A total of 23 point mutations and 15 indels were identified among the 3 isolates.
- The majority of polymorphisms were isolate-specific, indicating a genetically heterogeneous infecting population.
Takeaway
Scientists studied bacteria from a sick person over two years and found that the bacteria changed a lot, which helps us understand how they survive and cause infections.
Methodology
Comparative genomic analysis of sequential S. aureus isolates from a cystic fibrosis patient over 26 months.
Participant Demographics
Cystic fibrosis patient
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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