Sinead E. Morris

Public Health Analytics and Modeling Fellow

Influenza Division, CDC


I'm a Public Health Analytics and Modeling Fellow in the Influenza Division at CDC, working at the intersection of mathematical modeling and public health. I previously modeled within-host dynamics of influenza and HIV as a postdoc at Columbia University, NY.


  • Mathematical modeling
  • Public Health
  • Epidemiology
  • Immunology & cross-scale dynamics


  • PhD in Ecology and Evolutionary Biology, 2018

    Princeton University

  • Msci in Mathematics, 2013

    University of Glasgow


Math modeling

Data analysis

Software design



Public Health Analytics and Modeling Fellow

Influenza Division, CDC

Aug 2021 – Present Atlanta, GA
  • Seasonal influenza transmission dynamics
  • Impacts of vaccines and pharmaceutical interventions


Columbia University Medical Center

Jul 2018 – Aug 2021 New York, NY

Supervised by Prof. Andrew Yates

Projects included:

  • HIV dynamics in infants on antiretroviral treatment
  • Population dynamics of memory T cells
  • Modeling T cell responses to influenza infection

PhD student

Princeton University

Aug 2013 – Jun 2018 Princeton, NJ

Supervised by Prof. Bryan Grenfell

Projects included:

  • Within-host dynamics of measles
  • Spatial spread of seasonal influenza
  • Modeling an outbreak of dolphin morbillivirus (DMV)
  • Unravelling the impact of within-host immune responses on population dynamics

Recent publications

(2022). Healthy dynamics of CD4 T cells may drive HIV resurgence in perinatally-infected infants on antiretroviral therapy. PLoS Pathogens.


(2021). Vaccine nationalism and the dynamics and control of SARS-CoV-2. Science.


(2021). Longitudinal profiling of respiratory and systemic immune responses reveals myeloid cell-driven lung inflammation in severe COVID-19. Immunity.


(2021). Epidemiological and evolutionary considerations of SARS-CoV-2 vaccine dosing regimes. Science.


(2020). Immune life history, vaccination, and the dynamics of SARS-CoV-2 over the next 5 years. Science.




Vaccine nationalism

Companion shiny app to Wagner & Saad-Roy et al. 2021 medRxiv

SARS-CoV-2 dynamics

Companion shiny app to Saad-Roy & Wagner et al. 2020 Science

SARS-CoV-2 vaccination

Companion shiny app to Saad-Roy et al. 2021 Science

Modeling tissue-resident memory T cells

How to model tissue-resident memory T cells in nonlymphoid tissues.


Interactive plotting for models of infectious disease spread


Understanding suppression of HIV in R.

Teaching resources

Math, Models, and Social Mixing

From the RockEDU event page: “This week on Data for the People, postdocs Chloe Pasin and Sinead Morris will talk about how …

SIS model for malaria

Background: simple SIS model Let’s start by refreshing the basics of the SIS model. Susceptible individuals (\(S\)) become infected and …

Disease modeling short course

Understanding the SIR model

Introduction In class we covered the SIR model with births and deaths. As a quick refresher: susceptible individuals (\(S\)) become …