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Surveillance and Outbreak Response Team (SORT)

Our Team

Emily S. Gurley, PhD, MPH

Emily Gurley

Emily is an Associate Scientist in the Department of Epidemiology and leads multi-disciplinary studies on the transmission and prevention of emerging and vaccine preventable diseases, such as Nipah virus, hepatitis E virus, and arboviruses. She has worked in Bangladesh for more than a decade and her interests include improving the communication and collaboration between field epidemiologists and infectious disease modelers and development of novel surveillance strategies. Her research adopts a One Health approach to the study and prevention of infectious disease, taking into account the ecological context in which human disease occurs. Emily is the Co-Director for the Child Health and Mortality Prevention Surveillance (CHAMPS) site in Bangladesh, aiming to determine the etiology of and prevent child deaths. She also works closely with the US Centers for Disease Control and Prevention’s Global Disease Detection program.

Melissa A. Marx, PhD, MPH

Melissa Marx

Dr. Melissa A. Marx is an Assistant Professor in the Department of International Health at the Johns Hopkins Bloomberg School of Public Health. She is an expert in epidemiology and evaluation who specializes in developing, disseminating and utilizing new metrics and methods to evaluate and improve international programs, focusing on maternal, neonatal, child health and nutrition and HIV, TB and malaria in low and middle income settings. Dr. Marx is committed to building sustainable capacity in the analysis and use of routine data for program improvement and has developed and evaluated learner-focused training programs for students and public health practitioners to move that agenda forward. While at CDC as an EIS officer and in the Zambia field office, she developed, conducted, and oversaw outbreak investigations and epidemiologic studies on HIV, Ebola, zoonotic transmission of anthrax, typhoid fever, cholera, food-borne illness, Hepatitis B and C, STIs, and drug resistant organisms including MRSA, among others.

kyle aune

Kyle Aune

Kyle is a doctoral candidate in the Department of Environmental Health and Engineering. He earned an MPH degree with a focus in epidemiology from the University of Alabama at Birmingham. Kyle is interested in the effect climate change has on infectious disease transmission, and his dissertation research focuses on extreme weather events and influenza transmission. His dissertation research has built on a foundation of epidemiologic methods, infectious disease epidemiology, virology, and biostatistics coursework to develop skills in spatial statistics and analysis, remote sensing, machine learning, and statistical programming with R and SAS.

Kechna Cadet 

Kechna Cadet

Kechna is currently a 2nd year PhD student in the Department of Mental Health on the Drug Dependence Epidemiology Training grant. Her research focuses on the social epidemiology of substance use, particularly at the intersection of racial disparities and socio-contextual factors (i.e., violence, housing insecurity, and discrimination) among people who use drugs. She received her Master’s in Public Health in Community Health and Social Sciences at CUNY school of Public Health and Health Policy. She has over 5 years experience working on research projects that focus on racial/ethnic minority and other marginalized populations, including homelessness populations, men who have sex with men, and people who inject drugs. Prior to her doctoral training, Kechna was a research fellow on the NIDA R25 Translational Research Training in Addictions for Racial/Ethnic Minorities at Columbia University Medical Center and City College of New York (TRACC) Fellowship.


Catelyn Coyle

Catelyn is a PhD student in the Department of Epidemiology in the Infectious Disease track. Her research interests center on HIV, HCV and people who inject drugs (PWID). Her dissertation seeks to understand why, despite major advancements in HCV treatment, uptake among PWID remains low. Catelyn has experience with HIV, HCV, scientific writing for a broad audience, spatial statistical analysis, and primary and secondary data collection.

Kyra Grantz

Kyra Grantz

Kyra is a doctoral student in infectious disease epidemiology. Her research focuses on the feasibility of treatment-as-prevention to achieve Hepatitis C virus elimination among people who inject drugs. She is also interested in modeling fine-scale spatial and temporal dynamics of disease transmission with epidemiologic and pathogen genetic data. Kyra has collaborated closely with many public health authorities, including the US CDC, WHO, MSF, and various ministries of health to study influenza, dengue, yellow fever, Ebola, rotavirus, leprosy, and chikungunya. She has experience in the implementation and analysis of clinical trials in low-resource settings and during outbreak responses.

Forrest Jones

Forrest Jones

Forrest is a doctoral student in the Department of Epidemiology and is also enrolled in the MHS program in Biostatistics. His dissertation work focuses on using serological data to improve estimates of cholera incidence and immunity. Forrest has experience studying diarrheal diseases, HIV, tuberculosis, vaccine-preventable diseases, and RSV. Other skills include statistical analysis, knowledge of immunology, laboratory technique, data visualization, SAS programming, and French language (beginner level). Prior to JHSPH, Forrest was an ASPPH/CDC Allan Rosenfield Global Epidemiology Fellow stationed at the CDC office in Dar es Salaam, Tanzania.

Kyu Han Lee

Kyu Han Lee

Kyu is a postdoctoral fellow in the Department of Epidemiology. He works primarily on child health and emerging infections. Kyu has experience with respiratory pathogens (e.g. pneumococcus, influenza) as a micro/molecular biologist and as an infectious disease epidemiologist. He is fluent in Korean and has extensive experience in Kenya and Tanzania.

Jowanna Malone

Jowanna Malone

Jowanna is a doctoral student in Infectious Disease Epidemiology at Johns Hopkins Bloomberg School of Public Health. She received her B.A. in Sociology and a Master of Science in Infectious Disease Epidemiology from Harvard University. Her research focuses on HIV prevention and treatment efforts among racial and sexual minority groups (particularly surrounding PrEP use). Jowanna is especially interested in how intersectional marginal identities affect one’s HIV/STI outcomes. Jowanna is currently conducting her dissertation on identifying socioecological challenges (i.e. at the individual, community, and structural level) to achieving viral suppression among men who have sex with men (MSM) in the United States. Jowanna is experienced in qualitative research methods, scientific manuscript development, quantitative data analysis, HIV and STI testing, and survey implementation.

Emma Moynihan

Emma Moynihan

Emma is a doctoral student in the Department of Environmental Health & Engineering in the Exposure Sciences and Environmental Epidemiology track. She also received her MPH from the Johns Hopkins Bloomberg School of Public Health in 2018. She is specifically interested in the impacts of climate change on the etiology and transmission of diseases. Prior to graduate school, Emma was a Fulbright Scholar in Malaysia, which propelled her passion for public health. She has experience working on multiple surveillance programs on behalf of the CDC and state governments from which she brings expertise in survey design and implementation, statistical programming, and data analytics along with skills in spatial analysis.

eshan patel 

Eshan Patel

Eshan is a PhD student in the Infectious Diseases track in the Department of Epidemiology. He received his MPH from  JHSPH in 2016 and previously conducted an intramural research training fellowship at the National Institute of Allergy and Infectious Diseases, where he developed and evaluated laboratory methods to measure the seroprevalence and incidence of HIV, hepatitis C virus (HCV) and sexually transmitted infections (STIs). His research broadly focuses on the epidemiology, prevention and control of HIV, HCV and STIs in the United States and resource-limited settings. He is particularly interested in identifying and overcoming barriers to HIV and HCV elimination among people who inject drugs (PWID).

Neia Prata Menezes

Neia Prata Menezes

Neia is a doctoral student in the Department of Epidemiology in the Infectious Disease track. Her research interests focus on understanding and overcoming barriers to HIV care and treatment among marginalized key populations such as injection drug users. She is particularly interested in leveraging interpersonal social networks of key populations to inform effective and sustainable interventions to address gaps in HIV care and treatment. Neia has extensive experience in working with Ministry of Health organizations in various countries to use HIV programmatic data for decision-making, design routine data collection tools, and evaluate surveillance systems. Other skills include statistical data analysis, scientific writing, knowledge of HIV and PMTCT, and survey implementation among key populations.

Katherine Robsky

Katherine Robsky

Katherine is a PhD candidate in the Department of Epidemiology. Her dissertation research uses spatiotemporal patterns to identify populations at risk for TB that could be prioritized for preventive and case finding interventions in urban Kampala. She previously completed her MPH in Infectious Diseases at University of California. She has extensive experience working in government public health agencies, both as ASPPH/CDC Allan Rosenfield Strategic Information Fellow partnering with the Ministry of Health and Human Services in Namibia and as the Surveillance and Informatics Coordinator for the California Department of Public Health TB Control Branch. Her interests include using routinely collected data for research purposes, implementation science, and application of spatial analysis methods.

steven sola 

Steven Sola

Steven is a doctoral student in the Department of Environmental Health and Engineering. Prior to Johns Hopkins, he received his MSPH in Environmental Health and Engineering from Emory University and completed an infectious disease epidemiology fellowship with the Council of State and Territorial Epidemiologists at the New York State Department of Health. While at the New York State Department of Health, he assisted with outbreaks of measles, cyclosporiasis, and COVID-19. Steven is interested in WASH (water, sanitation, and hygiene) in low-resource settings and community-based climate resiliency. He is a Returned Peace Corps Volunteer from Indonesia, and is constantly searching for authentic Indonesian food in the US.

patrick wedlock 

Patrick Wedlock

Patrick is a DrPH student in the Implementation Science concentration. He received his MSPH in International Health from the Johns Hopkins Bloomberg School of Public Health in 2016. He is currently a senior research analyst with the Public Health Informatics, Computational and Operations (PHICOR) team based at the City University of New York and was previously a research associate at the Bloomberg School of Public Health. His research has included using modeling and other computational tools to inform public health decision making. This has included using simulation models to improve the design of vaccine supply chains and evaluate the clinical and economic impact of vaccines. He is interested in improving the interface between public health research and decision making.

Former Members


Qifang bi, phd

Lelia Chaisson, PhD

dylan duchen

brooke jarrett

gideon loevinsohn

katie overbey

jean olivier twahirwa rwema