Researchers in infectious disease, epidemiology, vaccines, and global health

Jordi Sunyer

Jordi Sunyer is a Spanish physician and environmental epidemiologist at ISGlobal in Barcelona, known for linking air pollution to children's asthma, lung function, and brain development.

Jörgen Lehmann (1898–1989) was a Danish-Swedish physician and biochemist who discovered para-aminosalicylic acid, the first effective drug against tuberculosis, and led the laboratory at Sahlgrenska Hospital in Gothenburg.

Jørn Olsen

Jørn Olsen (1946–2026) was a Danish physician and epidemiologist, professor of social medicine at Aarhus University and principal architect of the Danish National Birth Cohort.

Joseph A. Kovacs

Joseph A. Kovacs is an American physician-scientist at the NIH Clinical Center in Bethesda, Maryland, known for work on Pneumocystis pneumonia and HIV immune-based therapy.

Joseph B. McCormick

Joseph B. McCormick, born 1942, is an American infectious disease epidemiologist who led the Lassa fever research that produced the first successful drug treatment of a viral hemorrhagic fever.

Joseph Berkson

Joseph Berkson (1899–1982) was an American physician and biostatistician who headed biometry at the Mayo Clinic from 1932 to 1964, introduced logistic bio-assay, and named Berkson's bias.

Joseph E. Parrillo

Joseph E. Parrillo is an American cardiologist and critical care researcher who showed septic shock involves reversible heart-muscle depression, and directs research at Hackensack University Medical Center's Heart and Vascular Hospital.

Joseph Everett Dutton

Joseph Everett Dutton (1874–1905) was a British parasitologist who identified the first trypanosome found in human blood and died of relapsing fever in the Congo.

Joseph Goldberger

Joseph Goldberger (1874–1929) was a Slovak-born American epidemiologist with the US Public Health Service who demonstrated between 1914 and 1923 that pellagra was caused by dietary deficiency, not infection.

Joseph J. Eron

Joseph J. Eron is an American infectious disease physician-scientist at UNC Chapel Hill whose 1995 trial helped establish combination HIV therapy, and who now chairs the ACTG trials network.

Joseph W. St. Geme

Joseph W. St. Geme, Jr. (1931–1986) was an American physician-scientist in pediatric infectious disease who showed mumps virus crosses the human placenta, leaving children with cellular immunity.

Joshua A. Salomon

Joshua A. Salomon is a health policy researcher and Professor of Health Policy at Stanford School of Medicine, directing the Prevention Policy Modeling Lab for infectious disease modeling.

Josué de Castro

Josué de Castro (1908–1973) was a Brazilian physician and federal deputy who argued hunger is socially produced, wrote The Geography of Hunger, and chaired the FAO Council.

Sep 17, 2026

Judith Wasserheit

Judith Wasserheit is an American physician-epidemiologist who led the CDC's STD/HIV prevention division, directed the HIV Vaccine Trials Network, and chaired global health at the University of Washington.

Sep 17, 2026

Juergen Albrecht Richt

Juergen A. Richt is a German-trained veterinary virologist at Kansas State University who studies zoonotic diseases and was elected to the National Academy of Medicine in 2024.

Juha Pekkanen

Juha Pekkanen is a Finnish physician and epidemiologist, professor emeritus at the University of Helsinki, known for finding that farm-like indoor microbiota protects children from asthma.

Juhani Eskola

Juhani Eskola, born 1951, is a Finnish vaccine scientist and physician who led the pioneering Finnish Hib conjugate vaccine trials and served as Director General of THL from 2014 to 2018.

Julia Hippisley‐Cox

Julia Hippisley-Cox is a British clinical epidemiologist at Queen Mary University of London who founded QResearch and led the QRISK and QCOVID risk prediction algorithms.

Julie E. Buring

Julie E. Buring is a chronic-disease epidemiologist, Professor Emerita at Harvard Medical School, known for leading large prevention trials in women, including the Women's Health Study and VITAL.

Julie L. Gerberding

Julie Louise Gerberding is an American infectious-disease physician who was the first woman to direct the CDC, from 2002 to 2009, and became FNIH CEO in 2022.

Julio Montaner

Julio S. G. Montaner is an Argentine-born Canadian physician who directs the BC Centre for Excellence in HIV/AIDS and pioneered Treatment as Prevention, adopted by the United Nations.

Julius Lukeš

Julius Lukeš is a Czech parasitologist and protist molecular biologist at the Czech Academy of Sciences, elected to the US National Academy of Sciences in 2024.

Junfeng Zhang

Junfeng (Jim) Zhang is an environmental health scientist and professor at Duke University since 2013, known for studies linking air pollution to cardiovascular and respiratory outcomes.

Jürgen Rehm

Jürgen Rehm is a German epidemiologist at Toronto's Centre for Addiction and Mental Health who studies the global burden of disease from alcohol and other drugs.

Justin Lessler

Justin Lessler is an American infectious disease epidemiologist and professor at the University of North Carolina at Chapel Hill, known for national COVID-19 modeling and the Scenario Modeling Hub.

K. Srinath Reddy

K. Srinath Reddy is an Indian cardiologist and public health researcher who founded the Public Health Foundation of India in 2006 after heading cardiology at AIIMS, New Delhi.

Sep 17, 2026

K.M. Venkat Narayan

K.M. Venkat Narayan is a physician-epidemiologist at Emory University who studies diabetes, obesity, and vascular disease, and is a member of the National Academy of Medicine.

Kanta Subbarao

Kanta Subbarao is a virologist and pediatric infectious diseases physician who directed the WHO Collaborating Centre for Reference and Research on Influenza in Melbourne from 2016 to 2024.

Karel Styblo

Karel Styblo, a physician who survived tuberculosis in a Nazi concentration camp, built the TB control model that WHO adopted as DOTS in the 1990s.