JohnMatthewColfordJr.MD

Infectious Disease • San Francisco, CA

International Health, Travel & Tropical

Professor of Epidemiology

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Office
4150 Clement St
San Francisco, CA 94121
Phone+1 415-221-4810

Fax+1 510-666-2551
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Summary

Dr. John Colford Jr., MD is an infectious disease specialist in San Francisco, California. He is currently licensed to practice medicine in California. He is affiliated with San Francisco VA Medical Center.

Education & Training

University of California (San Francisco)Fellowship, Infectious Disease, 1990 - 1994
Stanford Health Care-Sponsored Stanford UniversityResidency, Internal Medicine, 1989 - 1990
University of California (San Francisco)Residency, Internal Medicine, 1985 - 1988
Johns Hopkins University School of MedicineClass of 1985

Certifications & Licensure

CA State Medical License 1986 - 2026
American Board of Internal Medicine Internal Medicine

Clinical Trials

A Trial of Tap Water Treatment in the Elderly Start of enrollment: 2000 Jan 01
Completed
Not Applicable

Publications & Presentations

PubMed

17 citations
Effect of water, sanitation, handwashing and nutrition interventions on enteropathogens in children 14 months old: a cluster-randomized controlled trial in rural Bangl...
Jessica A. Grembi, Audrie Lin, Abdul Karim, Ohedul Islam, Rana Miah, Benjamin F. Arnold, Elizabeth T Rogawski McQuade, Shahjahan Ali, Ziaur Rahman, Zahir Hussain, Abul...> ;The Journal of Infectious Diseases. 2020 Aug 29
1 citations
Reply to S Rahman and S Ireen.
Christine P. Stewart, Kathryn G. Dewey, John M. Colford, Mahbub Rahman, Stephen P. Luby> ;The American Journal of Clinical Nutrition. 2019 Aug 1
58 citations
The role of water, sanitation and hygiene interventions in reducing soil-transmitted helminths: interpreting the evidence and identifying next steps
Susana Vaz Nery, Amy J. Pickering, Ebba Abate, Abraham Asmare, Laura Barrett, Jade Benjamin-Chung, Donald A. P. Bundy, Thomas Clasen, Archie C. A. Clements, John M. Co...> ;Parasites & Vectors. 2019 May 28
21 citations
Effects of Water, Sanitation, Handwashing, and Nutritional Interventions on Environmental Enteric Dysfunction in Young Children: A Cluster-randomized, Controlled Trial...
Audrie Lin, Shahjahan Ali, Benjamin F. Arnold, Ziaur Rahman, Mohammad Alauddin, Jessica A. Grembi, Andrew Mertens, Syeda L Famida, Salma Akther, Saheen Hossen, Palash ...> ;Clinical Infectious Diseases. 2019 Apr 8
24 citations
Associations between high temperature, heavy rainfall, and diarrhea among young children in rural Tamil Nadu, India: A prospective cohort study
Andrew Mertens, Kalpana Balakrishnan, Padmavathi Ramaswamy, Paramasivan Rajkumar, Prabhakar Ramaprabha, Natesan Durairaj, Alan Hubbard, Ranjiv Khush, John M. Colford, ...> ;Environmental Health Perspectives. 2019 Apr 1
30 citations
Effects of lipid-based nutrient supplements and infant and young child feeding counseling with or without improved water, sanitation, and hygiene (WASH) on anemia and ...
Christine P. Stewart, Kathryn G. Dewey, Audrie Lin, Amy J. Pickering, Kendra A. Byrd, Kaniz Jannat, Shahjahan Ali, Gouthami Rao, Holly N. Dentz, Marion Kiprotich, Char...> ;The American Journal of Clinical Nutrition. 2019 Jan 1
10 citations
A behaviour change intervention with lipid-based nutrient supplements had little impact on young child feeding indicators in rural Kenya.
Kendra A. Byrd, Holly N. Dentz, Anne M Williams, Marion Kiprotich, Amy J. Pickering, Ronald Otieno Omondi, Osborne Kwena, Gouthami Rao, Charles D Arnold, Benjamin F. A...> ;Maternal & Child Nutrition. 2019 Jan 1
5 citations
Sickle Cell and α+-Thalassemia Traits Influence the Association between Ferritin and Hepcidin in Rural Kenyan Children Aged 14-26 Months.
Kendra A. Byrd, Thomas N. Williams, Audrie Lin, Amy J. Pickering, Benjamin F. Arnold, Charles D Arnold, Marion Kiprotich, Holly N. Dentz, Sammy M. Njenga, Gouthami Rao...> ;The Journal of Nutrition. 2018 Dec 1
24 citations
Implications of WASH Benefits trials for water and sanitation - Authors' reply.
Benjamin F. Arnold, Clair Null, Stephen P. Luby, John M. Colford> ;The Lancet. Global Health. 2018 Jun 1
17 citations
Child environmental exposures to water and sand at the beach: Findings from studies of over 68,000 subjects at 12 beaches
Stephanie DeFlorio-Barker, Benjamin F. Arnold, Elizabeth Sams, Alfred P. Dufour, John M. Colford, Steven B Weisberg, Kenneth Schiff, Timothy J. Wade> ;Journal of Exposure Science & Environmental Epidemiology. 2018 Mar 1
49 citations
Spillover effects in epidemiology: parameters, study designs and methodological considerations.
Jade Benjamin-Chung, Benjamin F. Arnold, David Kenneth Berger, Stephen P. Luby, Edward Miguel, John M. Colford, Alan Hubbard> ;International Journal of Epidemiology. 2018 Feb 1
Effects of water quality, sanitation, handwashing, and nutritional interventions on diarrhoea and child growth in rural Kenya: a cluster-randomised controlled trial.
Null, C.,Stewart, C. P.,Pickering, A. J.,Dentz, H. N.,Arnold, B. F.,Arnold, C. D.,Benjamin-Chung, J.,Clasen, T.,Dewey, K. G.,Fernald, LCH.,Hubbard, A. E.,Kariger, P.,L...> ;Lancet Glob Health. 2018 Feb 06
Effects of water quality, sanitation, handwashing, and nutritional interventions on diarrhoea and child growth in rural Bangladesh: a cluster randomised controlled trial.
Luby, S. P.,Rahman, M.,Arnold, B. F.,Unicomb, L.,Ashraf, S.,Winch, P. J.,Stewart, C. P.,Begum, F.,Hussain, F.,Benjamin-Chung, J.,Leontsini, E.,Naser, A. M.,Parvez, S. ...> ;Lancet Glob Health. 2018 Feb 06
Effectiveness of the Hydrogen Sulfide Test as a Water Quality Indicator for Diarrhea Risk in Rural Bangladesh.
Mahfuza Islam, Ayse Ercumen, Abu Mohd Naser, Leanne Unicomb, Mahbubur Rahman, Benjamin F. Arnold, John M. Colford, Stephen P. Luby> ;The American Journal of Tropical Medicine and Hygiene. 2017 Dec 6
Effects of Boiling Drinking Water on Diarrhea and Pathogen-Specific Infections in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis.
Cohen, A.,Colford, J. M.> ;Am. J. Trop. Med. Hyg.. 2017 Oct 11
11 citations
Population Density, Poor Sanitation, and Enteric Infections in Nueva Santa Rosa, Guatemala.
Claudia Jarquin, Benjamin F. Arnold, Fredy Muñoz, Beatriz Lopez, Victoria M. Cuéllar, Andrew Thornton, Jaymin C. Patel, Lisette Reyes, Sharon L. Roy, Joe P. Bryan, Joh...> ;The American Journal of Tropical Medicine and Hygiene. 2016 Apr 6
35 citations
The Interaction of Deworming, Improved Sanitation, and Household Flooring with Soil-Transmitted Helminth Infection in Rural Bangladesh.
Jade Benjamin-Chung, Arifa Nazneen, Amal K. Halder, Rashidul Haque, Abdullah Siddique, Muhammed Salah Uddin, Kim Koporc, Benjamin F. Arnold, Alan Hubbard, Leanne Unico...> ;Plos Neglected Tropical Diseases. 2015 Dec 1
39 citations
Upgrading a Piped Water Supply from Intermittent to Continuous Delivery and Association with Waterborne Illness: A Matched Cohort Study in Urban India
Ayse Ercumen, Benjamin F. Arnold, Emily Kumpel, Zachary Burt, Isha Ray, Kara L. Nelson, John M. Colford> ;Plos Medicine. 2015 Oct 27
54 citations
Effects of Source- versus Household Contamination of Tubewell Water on Child Diarrhea in Rural Bangladesh: A Randomized Controlled Trial
Ayse Ercumen, Abu Mohd Naser, Leanne Unicomb, Benjamin F. Arnold, John M. Colford, Stephen P. Luby> ;Plos One. 2015 Mar 27
23 citations
Pilot Cluster Randomized Controlled Trials to Evaluate Adoption of Water, Sanitation, and Hygiene Interventions and Their Combination in Rural Western Kenya
Garret Christensen, Holly N. Dentz, Amy Pickering, Tomoé Bourdier, Benjamin F. Arnold, John M. Colford, Clair Null> ;The American Journal of Tropical Medicine and Hygiene. 2015 Feb 4
18 citations
Reactivity in rapidly collected hygiene and toilet spot check measurements: a cautionary note for longitudinal studies.
Benjamin F. Arnold, Ranjiv Khush, Padmavathi Ramaswamy, Paramasivan Rajkumar, Natesan Durairaj, Prabhakar Ramaprabha, Kalpana Balakrishnan, John M. Colford> ;The American Journal of Tropical Medicine and Hygiene. 2015 Jan 7
66 citations
Coliform Bacteria as Indicators of Diarrheal Risk in Household Drinking Water: Systematic Review and Meta-Analysis
Joshua S. Gruber, Ayse Ercumen, John M. Colford> ;Plos One. 2014 Sep 24
236 citations
The effect of India's total sanitation campaign on defecation behaviors and child health in rural Madhya Pradesh: a cluster randomized controlled trial.
Sumeet Patil, Benjamin F. Arnold, Alicia L. Salvatore, Bertha Briceno, Sandipan Ganguly, John M. Colford, Paul Gertler> ;Plos Medicine. 2014 Aug 26
44 citations
Estimating the impact of unsafe water, sanitation and hygiene on the global burden of disease: evolving and alternative methods
Thomas Clasen, Annette Prüss-Ustün, Colin Mathers, Oliver Cumming, Sandy Cairncross, John M. Colford> ;Tropical Medicine & International Health. 2014 Aug 1
32 citations
Effect of submarine groundwater discharge on bacterial indicators and swimmer health at Avalon Beach, CA, USA.
Vincent Yau, Kenneth Schiff, Benjamin F. Arnold, John F. Griffith, Joshua S. Gruber, Catherine C. Wright, Timothy J. Wade, Susan Burns, Jacqueline M. Hayes, Charles D....> ;Water Research. 2014 Aug 1
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Grant Support

Indicators Of Recreational Water Contamination And IllnessNational Institute Of Environmental Health Sciences2006–2010
Solar Water Disinfection: Randomized Intervention TrialNational Institute Of Allergy And Infectious Diseases2002–2006
Randomized Trial Of Tapwater Treatment In The ElderlyNational Institute On Aging2000–2004

Hospital Affiliations

San Francisco VA Medical CenterSan Francisco, California