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Anna York, BSc (Hon), PhD

Associate Research Scientist in Epidemiology (Microbial Diseases); Affiliated Faculty, Yale Institute for Global Health



I am a postdoctoral associate working on Streptococcus pneumoniae, which, despite safe and effective vaccines, this bacteria is responsible for 150,000 hospitalizations per year in the United States alone. My previous work aimed to better understand mechanisms of penicillin resistance and assist in the development of novel antimicrobial therapies. My research at Yale, focuses on understanding the importance of the structure and composition of the capsular polysaccharide (CPS) and its effect on serotype switching and growth patterns in vitro. I am also working on genome wide association studies (GWAS) to provide a better understanding of genetic factors driving differences in capsular polysaccharide structure and composition.

Education & Training

  • Undergraduate Summer Placement
    University of Warwick (2023)
  • Postdoctoral Associate
    Yale School of Public Health (2021)
  • PhD
    University of Warwick, Life Sciences (2019)
  • BSc (Hon)
    University of Warwick, Biomedical Science (2014)
  • Intercalated Year Placement Student
    GlaxoSmithKline (2013)


  • Magnetic Bead-Based purification of pneumococcal strains
    Toronto, ON, Canada 2022
    International Symposium on Pneumococci and Pneumococcal Diseases
  • Characterizing Capsule Switch Events in Streptococcus pneumoniae
    Liverpool, England, United Kingdom 2022
    Europneumo 2022

Departments & Organizations