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Assistant Professor
Melissa Marx

Departmental Affiliations

Global Disease Epidemiology and Control
Infectious Disease Epidemiology

Center & Institute Affiliations

Melissa A. Marx, PhD ‘02, MPH ’98, evaluates maternal, child, and infectious disease programs, and has led response efforts for outbreaks including SARS, Ebola, and COVID-19.

Contact Info

615 N. Wolfe Street, Room E5541

Research Interests

evaluation; data use; HIV; maternal child health; outbreak; surveillance
Experiences & Accomplishments
Johns Hopkins Bloomberg School of Public Health
Johns Hopkins Bloomberg School of Public Health
Texas A&M University
Melissa A. Marx, PhD, MPH is an Assistant Professor in the Department of International Health at the Johns Hopkins Bloomberg School of Public Health. She is currently leading the Bloomberg School’s support of the Baltimore City health department’s response to the COVID-19 pandemic. She is the lead author of the School’s Recommendations for a Metropolitan COVID-19 Response and a senior editor of the associated special emphasis series. She is faculty co-lead of the Surveillance Outbreak Response Team (SORT). Her non-outbreak work includes evaluating global maternal, child health and HIV/TB/malaria programs and developing methods and metrics to drive better collection and use of data for program improvement. Dr. Marx spent over 13 years practicing epidemiology including responding and leading responses to outbreaks for the CDC, first as an Epidemic Intelligence Officer, later as a senior epidemiologist for CDC at the New York City Department of Health and Mental Hygiene and then for CDC overseas. In addition to setting agendas for, using data from and overseeing HIV/AIDS evaluation and research, she has set up and monitored surveillance systems, including for antibiotic resistant organisms such as MRSA, and has responded to outbreaks including as SARS, H1N1, Ebola, zoonotic anthrax, cholera, typhoid, food-borne illness (and others) and prepared and overseen teams responding to other various public health threats.
Honors & Awards
2019 Excellent student rating, Large Scale Effectiveness Evaluations course, JHSPH 2018 Excellent student rating, Large Scale Effectiveness Evaluations course, JHSPH 2015 Excellence in Emergency Response, Exemplary commitment and in-country contributions to the elimination of Ebola in West Africa. CDC Honor Awards 2014 Meritorious Honor Award, Outstanding dedication in defending PEPFAR Country Operational Plan & improving cost efficiency in programming, U.S. Embassy & CDC-Zambia 2013 Meritorious Honor Award, Leadership and outstanding contribution in building capacity of public health professionals, U.S. Embassy & CDC-Zambia 2013 Franklin Award, Excellent documentation of results, U.S. Embassy & CDC-Zambia 2012 Franklin Award, Superior data quality assessment, U.S. Embassy & CDC-Zambia 2011 Certificate of Appreciation, Investigating Anthrax in humans and hippos, U.S. Embassy & CDC-Zambia 2007 Katrina response award, CDC, Commissioned Corps 2005 Severe Acute Respiratory Syndrome service award, CDC, Commissioned Corps 2004 Smallpox Vaccination Program service award, CDC, Commissioned Corps 2001 Jean Coombs Award for excellence in Epidemiology, Department of Epidemiology, JHSPH 1999 Jean Coombs Award for excellence in Epidemiology, Department of Epidemiology, JHSPH
Select Publications
Below is a subset of recent publications and publications highlighting current work.
  • Sharfstein JM, Marx MA. Testing is Just the Beginning in the Battle Against Covid-19. The New York Times Opinion, March 30, 2020.
  • Marx MA, Gurley E, Nuzzo J, Sauer L, Limaye RJ, Moss W, Lessler J, Sharfstein JM. Recommendations for a metropolitan COVID-19 Response. COVID-19 School of Public Health Expert Insights, Johns Hopkins Bloomberg School of Public Health, April 2, 2020.
  • Miller NP, Richards AK, Marx MA, Checchi F, Kozuki N. Assessing community health worker service delivery in humanitarian settings, Journal of Global Health, 2020, 10:1.
  • Pattniak A*, Mohan D, Chikoposa S, Misomali A, Kategenza H, Marx MA. Validity and Feasibility of Cellphone-based collection of data to evaluate strength of implementation of Youth-friendly Health Services in Malawi, BMC Health Services Research, 2020, 20:221.
  • Lehman MW*, Craig A, Malama C, Kapina Kanyanga M, Malenga P, Munsaka F, Muwowo S, Shadomy S, Marx MA. (2017). Role of Food Insecurity in Outbreak of Anthrax Infections among Humans and Hippopotamuses Living in a Game Reserve Area, Rural Zambia. Emerg Infect Dis. 2017, 23(9), 1471-1477.
Identifying barriers to retention in ART and prevention of mother to child transmission in Mozambique
Support for Baltimore COVID response
Real Accountability: Data Analysis for Results - RADAR
Real Accountability: Data Analysis for Results (RADAR)
Prospective Country Evaluation (PCE) in Senegal and Mozambique
Real Accountability: Data Analysis For Results (RADAR)