Research

Long COVID research in the National Clinical Cohort Collaborative (formerly National COVID Cohort Collaborative) (N3C) and NIH RECOVER, using harmonized multi-site electronic health record (EHR) data. Contributions include machine-learning phenotyping, ICD-10-based characterization, and target trial emulations of antiviral treatment.

A research initiative on data and methods for equitable crisis response; I worked on serosurveillance, including how geographically skewed recruitment biases COVID-19 seroprevalence estimates.

A multi-institution network using aggregated, privacy-preserving mobility data to track population movement and inform COVID-19 response planning.

An analysis of the International Organization for Migration's Flow Monitoring Survey data on migration across West and Central Africa, and the role of digital technology in transnational migration.

A Harvard research-and-policy collaborative on interoperable digital health systems for India; I worked on human-centered design for mHealth tools and on digital-health regulatory frameworks.

Analysis of national COVID-19 test-result data across India, conducted with the Swasth Community Science Alliance to inform how testing capacity was allocated during the pandemic.

A field assessment of the health and displacement consequences of the 2018 Kerala floods, conducted with the Government of Kerala and the All India Disaster Mitigation Institute.

A rapid-assessment household survey of Rohingya refugees and host families in Cox’s Bazar, Bangladesh, documenting health and displacement needs.

Documenting the effects of the Syrian conflict on population morbidity and mortality, as part of the Lancet Commission on Syria.

Community-based studies of child oral health and undernutrition in El Salvador, India, and Nepal, linking infant feeding and dietary practices to severe tooth decay and malnutrition in young children.