Yale School of Public Health
Department of Epidemiology of Microbial Diseases

The Ko Laboratory is dedicated to fighting the burden of infectious diseases globally

Our Mission

The Ko Laboratory is dedicated to advancing global health by investigating the emergence and transmission of infectious diseases that disproportionately affect marginalized urban populations. Through interdisciplinary research integrating epidemiology, ecology, and translational science, the lab aims to understand how factors such as rapid urbanization, social inequity, and climate influence disease dynamics in underprivileged communities. By developing and implementing community-based interventions, the Ko Laboratory strives to mitigate the impact of diseases like leptospirosis, dengue, Zika virus infection, and COVID-19, ultimately contributing to healthier and more equitable societies.

Our Research

Our lab focuses on four key research areas

1

Pau da Lima Cohort
The Pau da Lima Cohort is a long-term, community-based cohort research initiative in a Brazilian urban informal settlement that uses multidisciplinary methods—including serological studies, surveys, and environmental monitoring—to investigate and address infectious disease transmission, social determinants of health, and guide public health interventions in underserved settings.

2

Vector-Borne Diseases
Our research addresses the rising global burden of mosquito-borne viruses like dengue, Zika, and chikungunya—exacerbated by climate change, urbanization, and social inequity—by advancing diagnostics, vaccine strategies, and vector control to protect the most vulnerable populations.

3

Leptospirosis
Our research investigates how environmental degradation, climate variability, and social inequities drive disease transmission in vulnerable urban populations, with a focus on improving diagnostics, understanding transmission dynamics, and implementing community-based interventions in high-risk areas like Salvador, Brazil.

4

SARS-CoV-2
Our research investigates the epidemiology and evolution of SARS-CoV-2 in Connecticut, focusing on vaccine efficacy, protection correlates, viral spread in vulnerable populations, and the emergence of new variants—collaborating across sectors to inform public health policy and future outbreak responses.

Learn more

Lab News

Month YYYY

Masters of Public Health students, Karthika Satyanarayanan, Sebastian Salazar, and Michael Elhardt present their thesis research at EMD Research Day

Month YYYY

Pablo Aguilar, Paloma Cárcamo, and Elisabeth Nelson present their research at the Pan American Dengue Research Network conference in Medellín, Colombia

Month YYYY

Pablo Aguilar, Paloma Cárcamo, and Elisabeth Nelson present their research at the Pan American Dengue Research Network conference in Medellín, Colombia

The lab in action