Jacqueline Leung earned her PhD in Ecology and Evolutionary Biology at Princeton University. Her research
focuses on the ecology and immunology of infectious and inflammatory diseases. She has a particular interest
in understanding how variation in within-host immune processes contributes to heterogeneity in disease
susceptibility. As a postdoc in the Martinez lab, Jacqueline is characterizing seasonal and circadian rhythms in the
human immune system to determine whether functional changes in immune responses occur throughout
the year that may impact susceptibility to disease. (email@example.com)
Tigidankay (TK) Saccoh is currently a junior at Columbia College majoring in psychology and concentrating in
public health. She has been working in the Martinez Lab since the Spring 2019 semester. Currently, using
the R program and existing scientific literature, she is working on a paper that explores the best measles
vaccination schedules for children. She hopes to resume her study of how maternal immunity is implicated in the
development of the infant immune system once it is again safe to work with human participants. TK is especially
interested in reproductive justice and improving health outcomes for mothers and infants in the developing world.
She plans to pursue a joint JD/MPH degree after she graduates and ultimately hopes to improve reproductive
health for women in Sierra Leone, where she was born. Outside of academics, she loves to cook and
watch psychological thriller movies. (firstname.lastname@example.org).
Salwa Najmi is currently a Junior at the Macaulay Honors College at Hunter majoring in Arabic Language and
Culture. Starting in the summer of 2020, she worked with Dr. Martinez on digitizing and analyzing data from the
NYC Department of Health on the disparities of the COVID-19 public health crisis. As an aspiring physician,
she hopes to combine her interests in science with her passion for patient advocacy in her research projects. She
was accepted into the FlexMed program and thereby will be attending the Icahn School of Medicine at
Mount Sinai following her undergraduate studies.
Dennis Khodasevich earned his Master of Public Health in Environmental Health Sciences at Columbia University
Mailman School of Public Health. His research interests revolve around working with complex datasets to improve
understanding of environmental exposures and improve population health. Dennis works with Dr. Martinez to
characterize seasonal variation in daily light exposure among residents of the New York City area, and identify
associations between differential exposure to light at night and circadian biology. (email@example.com)
Emma Gorin is a PhD student in Environmental Health Sciences at Columbia. Before starting at Columbia, she
completed her MSPH in Global Disease Epidemiology and Control at Johns Hopkins University in 2019, where her
research included investigating sanitation availability in northern India and mobility among female sex workers in
Guinea-Bissau. Prior to her master’s program, she worked in health education, clinical research, and international
non-profit settings. Emma is currently working with Dr. Martinez on using traffic data to model population mobility
at the beginning of the COVID-19 outbreak in NYC.