Enhancing seasonal flu forecasts

Seasonal influenza virus strains can co-circulate during the same flu season, and have been shown to interfere with one another’s spread. Despite this, current flu model projections and forecasts often do not account for these strain interactions or their impact on disease spread, leading to less accurate predictions.

CIDMATH’s research aims to improve flu modeling and forecasting by incorporating multiple strains, cross-immunity, and other measures to better reflect the reality of how flu viruses spread.

OUR APPROACH

Existing models and forecasts of seasonal influenza largely ignore that flu seasons commonly involve the co-circulation of influenza virus strains. Existing models for influenza viruses with pandemic potential also largely ignore that a pandemic virus would emerge in a population that is not influenza naïve and has some degree of pre-existing immunity. We are improving influenza model projections and the accuracy of influenza forecasts by:

  • Quantifying age- and strain-specific vaccine effectiveness
  • Developing multi-strain models and estimating cross-immunity
  • Estimating time-varying reproduction numbers for strain-specific influenza data
  • Contributing strain-aware and strain-specific forecasts

Recent WORK

Preprint: Subtype dynamics reveal horizon-dependent structure in influenza predictability

Yicheng Mao, Benjamin Lopman, Katia Koelle, Max SY Lau

TEAM

Benjamin Lopman, PhD

Benjamin Lopman, PhD

Director and Co-Principal Investigator
Professor, Department of Epidemiology, Emory University Rollins School of Public Health

Katia Koelle, PhD

Katia Koelle, PhD

Director of Scientific Initiatives and Co-Principal Investigator
Professor, Department of Biology, Emory University College of Arts and Sciences

Natalie Dean, PhD

Natalie Dean, PhD

Deputy Director and Co-Principal Investigator
Associate Professor, Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health

Allison Chamberlain, PhD

Allison Chamberlain, PhD

Director of Public Health Practice and Co-Principal Investigator
Associate Professor, Department of Epidemiology, Emory University Rollins School of Public Health

Rustom Antia, PhD

Rustom Antia, PhD

Samuel Candler Dobbs Professor, Department of Computer Science, Emory University College of Arts and Sciences, Co-Investigator, CIDMATH

Max Lau, PhD

Max Lau, PhD

Assistant Professor, Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Co-Investigator, CIDMATH

Veronika Zarnitsyna, PhD

Veronika Zarnitsyna, PhD

Associate Professor, Department of Microbiology and Immunology, Emory University School of Medicine, Co-Investigator, CIDMATH

Nikunj Goel, PhD

Nikunj Goel, PhD

Postdoctoral Researcher, Department of Biology, Emory University College of Arts and Sciences

Leke Lyu, PhD

Leke Lyu, PhD

Postdoctoral Fellow, Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health