Judd L. Walson, MD, MPH
Department of Medicine, Division of Allergy & Infectious Diseases
Department of Pediatrics
Department of Epidemiology
Executive Director, Strategic Analysis, Research and Training Center (START Center)
Co-Director, Childhood Acute Illness and Nutrition Network (CHAIN)
Principal Investigator, DeWorm3 The Natural History Museum, London UK
Sites of Practice: 
Harborview Medical Center
Seattle Children’s Hospital
University of Washington Medical Center

Faculty Information


Judd Walson, MD, MPH, is a faculty member at the University of Washington in the Departments of Global Health, Internal Medicine (Infectious Disease), Pediatrics and Epidemiology. Dr. Walson conducts clinical trials evaluating the treatment and prevention of intestinal worms, malaria and diarrheal disease in delaying HIV progression. He is also conducting a large 5-year study examining the epidemiology of non-typhoidal salmonella as a cause of diarrheal disease and bacteremia among children in Africa.

Dr. Walson has lived and worked in many international settings, including Kenya, Thailand and Nepal. In addition to clinical epidemiology, Dr. Walson is the co-Director of the Strategic Analysis, Research and Training Program (START) at the University of Washington. He also serves as the co-Director of the AIDS Associated Infections and Malignancies Scientific Working Group in the Center for AIDS Research (CFAR) at the University of Washington.

Opportunities to collaborate:

  • Ongoing studies of diarrheal disease in children in Kenya
  • Ongoing studies of the human microbiome and nutrition
  • Ongoing studies of environmental enteropathy in Kenya and Bangladesh
Education & Training: 
Tufts University School of Medicine
Boston MA
Tufts University School of Medicine
Boston MA
Medicine and Pediatrics, Duke University
Durham NC
Fellowship in Infectious Disease
University of Washington
Seattle WA
Charlton Research Award, Tufts University
IMPACT Award from Pre-Vent for dedication to Infectious Disease
Top 10 Articles, Trends in Parasitology
APA Teaching Program Award, Global Health Pediatrics Pathway
(206) 744-3695
Mailing Address: 

Harborview Medical Center
325 9th Ave

Box 359909

Seattle, WA 98195

Research & Clinical Interests
Research Interests: 
  • Enteric disease and dysfunction
  • Neglected tropical diseases
  • Nutrition and infection

Onchiri FM, Pavlinac PB, Singa BO, Naulikha JM, Odundo EA, Farquhar C, Richardson BA, John-Stewart G, Walson JL. Frequency and correlates of malaria over-treatment in areas of differing malaria transmission: a cross-sectional study in rural Western Kenya. Malar J. 2015 Mar 1; 14(1):97.
• PubMed Abstract

Pavlinac PB, John-Stewart GC, Naulikha JM, Onchiri FM, Denno DM, Odundo EA, Singa BO, Richardson BA, Walson JL. High-risk enteric pathogens associated with HIV infection and HIV exposure in Kenyan children with acute diarrhea. AIDS. 2014 Sep 24; 28(15):2287-96.
• PubMed Abstract

Walson JL, Sangaré LR, Singa BO, Naulikha JM, Piper BK, Yuhas K, Onchiri FM, Otieno PA, Mermin J, Zeh C, Richardson BA, John-Stewart G. Evaluation of impact of long-lasting insecticide-treated bed nets and a point-of-use water filters on HIV-1 disease progression in Kenya. AIDS. 2013 Jun 1; 27(9):1493-501.
• PubMed Abstract

Walson J, Singa B, Sangaré L, Naulikha J, Piper B, Richardson B, Otieno PA, Mbogo LW, Berkley JA, John-Stewart G. Empiric deworming to delay HIV disease progression in adults with HIV who are ineligible for initiation of antiretroviral treatment (the HEAT study): a multi-site, randomized trial. Lancet Infect Dis. 2012 December 12; (12):925-32.
• PubMed Abstract

Walson JL, Brown ER, Otieno PA, Mbori-Ngacha DA, Wariua G, Obimbo EM, Bosire RK, Farquhar C, Wamalwa D, John-Stewart GC. Morbidity among HIV-1 infected mothers in Kenya: prevalence and correlates of illness during 2-year postpartum follow-up. J Acquir Immune Defic Syndr. 2007 Oct 1; 46(2):208-215.
• PubMed Abstract

Walson JL, Otieno PA, Mbuchi M, Richardson BA, Lohman-Payne B, Macharia SW, Overbaugh J, Berkley J, Sanders EJ, Chung MH, John-Stewart GC. Albendazole treatment of HIV-1 and helminth co-infection: a randomized, double blind, placebo-controlled trial. AIDS. 2008 Aug 20; 22(13)1601-9.
• PubMed Abstract