Centre for Mathematical Sciences
Cambridge CB3 0WB, UK
September 2020 - July 2021:
My PhD is in mathematics but I have bachelors' degrees both in mathematics and in physics, I deferred my admission at Harvard's math PhD program to spend a year in Stanford's theoretical physics PhD program, and before that I had both some undergraduate training and an NSF REU internship in biomedical engineering. My earlier mathematical-physics training was in mirror symmetry and string theory, and I am still a fan of both.
I initially focussed on fact checking and evaluating the appropriateness of individual study designs and data analysis methods in different contexts as I learned more about epidemiology, infectious disease, and public health. Prior to widespread vaccine availability and uptake in the UK, I also advocated for increased freedoms and protections for clinically vulnerable and immunochallenged members of the population in England, including the right to flexible school arrangements for families with clinically vulnerable household members--a cause later taken up by the Public Law Centre and by Good Law Project. From there, my advocacy focus shifted to accuracy in risk/benefit analyses of vaccine strategies, improved access to (and uptake of) vaccines, and getting the most out of rapid antigen test strategies.
From a research standpoint, I have been interested in study design and data analysis methods, the role of paediatric and other subpopulations in transmission dynamics, and the impact of variants on various aspects of epidemic impact and policy response.
-Twitter account, @SarahDRasmussen (Has received informal recognition).
-22 Dec 2021, Times Radio interview on Omicron-related questions.
-2 Feb 2021, invited panelist for an All-Party Parliamentary Group on Coronavirus session on school measures and child transmission.
Preprints, Publications, Selected Correspondence + Fact Checking
"Relative generation time distribution and relative reproduction number for Omicron versus Delta variants of SARS-CoV-2 from England case incidence"
"A convergence based assessment of relative differences in age-stratified susceptibility and infectiousness for SARS-CoV-2 variants of B.1.1.7 lineage",
March 2021. medRxiv preprint. (Haven't got around to submitting to a journal yet.)
w/ Deepti Gurdasani, Athena Akrami, Valerie C Bradley, Anthony Costello, et al,
"Long COVID in children",
The Lancet Child & Adolescent Health, Vol 6 (1), E2, 01 Jan 2022.
w/ Deepti Gurdasani, Nisreen A Alwan, Trisha Greenhalgh, Zoe Hyde, et al,
"School reopening without robust COVID-19 mitigation risks accelerating the pandemic",
The Lancet, Vol 397 (10280), p1177-1178, 27 Mar 2021.
"Ed Humpherson to Iain Bell: ONS COVID-19 Infection Survey ad hoc teacher analysis"
(A letter from the Director of the Office for Statistics Regulation in response to a report I submitted.)
"Violations of stated methodology and misreported results in Viner and colleagues' School Closures Review"
May 2020. See further details and explanation here and a summary thread here.
Invited TalksRegensburg, Germany (remotely): Low-dimensional geometry and topology seminar, 24 Nov 2020.
"Taut foliations and fundamental group left orders in Heegaard genus 2,"
Oberwolfach Reports: "Low-dimensional Topology," Workshop Report 2020, 8.
"Rational L-space surgeries on satellites by algebraic links,"
Journal of Topology 13 (4), 1333-1387, 2020.
"L-spaces, taut foliations, and graph manifolds," with
Jacob Rasmussen, and
Compositio Mathematica, 156 (3), 604-612, 2020.
"Heegaard Floer theory, semigroups, and a new characterization of rational
Oberwolfach Reports: “Singularities,” 13 (3), 2652-2655 (2016).
"L-space intervals for Graph Manifolds and Cables."
Compositio Mathematica, 153 (5), 1008-1049, 2017.
"Floer Simple Manifolds and L-space Intervals," with
Advances in Mathematics, 322 (2017) 738-805.