Sinead E. Morris

Influenza Modeling Consultant


I'm a modeling consultant supporting the Influenza Division at CDC, working at the intersection of mathematical modeling and public health.


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


  • PhD in Ecology and Evolutionary Biology, 2018

    Princeton University

  • MA in Ecology and Evolutionary Biology, 2015

    Princeton University

  • Msci in Mathematics, 2013

    University of Glasgow


Math modeling

Data analysis

Software design



Consultant for the Influenza Division, CDC

Oct 2023 – Present Remote
  • Impacts of seasonal influenza vaccination of pregnant persons
  • Modeling for emergency preparedness and response activities

Steven M. Teutsch Analytics and Modeling Fellow

Influenza Division, CDC

Aug 2021 – Aug 2023 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

(2023). Medium-term scenarios of COVID-19 as a function of immune uncertainties and chronic disease. Journal of the Royal Society Interface.


(2023). Impact of waning immunity against SARS-CoV-2 severity exacerbated by vaccine hesitancy. submitted.

(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.





Companion shiny app to Saad-Roy et al. 2023 J. R. Soc. Interface

SARS-CoV-2 severity-blocking immunity

Companion shiny app to Saad-Roy et al. submitted

Vaccine nationalism

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

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

Modeling 101 for Public Health

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