Staff

Tim Julian

Dr. Tim Julian

Group Leader of Pathogens and Human Health

Department Environmental Microbiology

About Me

I started the Pathogens and Human Health research group in the Department of Environmental Microbiology (Umik) at Eawag in May 2014.  Previously, I worked as a postdoctoral fellow in Environmental Health Sciences at Johns Hopkins Bloomberg School of Public Health (Baltimore, MD, USA) working with Prof. Kellogg Schwab. My research included work on environmental transmission of enteric disease in low and middle income countries and viral evolution in response to stressors.  My doctoral dissertation research, on fomite-mediated disease transmission, was conducted under the advising of Prof. Ali Boehm in Civil and Environmental Engineering at Stanford University (Stanford, CA, USA). 

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Projects

Virus Transfer at the Skin-Liquid Interface
Microbial stability in reclaimed and treated grey water
Growth Kinetics and Gene Transfer of Enteric and Environmental E. coli in Domestic Settings
Exploration of the impact of water chlorination on fecal carriage of antimicrobial resistant bacteria amongst a cohort of Bangladeshi children

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Curriculum Vitae

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Selected publications

Julian, T. R.; Vithanage, H. S. K.; Chua, M. L.; Kuroda, M.; Pitol, A. K.; Nguyen, P. H. L.; Canales, R. A.; Fujii, S.; Harada, H. (2018) High time-resolution simulation of E. coli on hands reveals large variation in microbial exposures amongst Vietnamese farmers using human excreta for agriculture, Science of the Total Environment, 635, 120-131, doi:10.1016/j.scitotenv.2018.04.100, Institutional Repository
Navab-Daneshmand, T.; Friedrich, M. N. D.; Gächter, M.; Montealegre, M. C.; Mlambo, L. S.; Nhiwatiwa, T.; Mosler, H.-J.; Julian, T. R. (2018) Escherichia coli contamination across multiple environmental compartments (soil, hands, drinking water, and handwashing water) in urban Harare: correlations and risk factors, American Journal of Tropical Medicine and Hygiene, 98(3), 803-813, doi:10.4269/ajtmh.17-0521, Institutional Repository
Julian, T. R.; Bustos, C.; Kwong, L. H.; Badilla, A. D.; Lee, J.; Bischel, H. N.; Canales, R. A. (2018) Quantifying human-environment interactions using videography in the context of infectious disease transmission, Geospatial Health, 13(1), 195-197, doi:10.4081/gh.2018.631, Institutional Repository
Julian, T. R. (2018) Escherichia coli in Harare - Wie gelangt das Bakterium in die Haushalte und woher stammt es?, Aqua & Gas, 98(5), 60-64, Institutional Repository
Hong, P.-Y.; Julian, T. R.; Pype, M.-L.; Jiang, S. C.; Nelson, K. L.; Graham, D.; Pruden, A.; Manaia, C. M. (2018) Reusing treated wastewater: consideration of the safety aspects associated with antibiotic-resistant bacteria and antibiotic resistance genes, Water, 10(3), 244 (22 pp.), doi:10.3390/w10030244, Institutional Repository
Pitol, A. K.; Bischel, H. N.; Kohn, T.; Julian, T. R. (2017) Virus transfer at the skin−liquid Interface, Environmental Science and Technology, 51, 14417-14425, doi:10.1021/acs.est.7b04949, Institutional Repository
Friedrich, M. N. D.; Julian, T. R.; Kappeler, A.; Nhiwatiwa, T.; Mosler, H.-J. (2017) Handwashing, but how? Microbial effectiveness of existing handwashing practices in high-density suburbs of Harare, Zimbabwe, American Journal of Infection Control, 45(3), 228-233, doi:10.1016/j.ajic.2016.06.035, Institutional Repository
Julian, T. R. (2016) Environmental transmission of diarrheal pathogens in low and middle income countries, Environmental Science: Processes and Impacts, 18(8), 944-955, doi:10.1039/c6em00222f, Institutional Repository
Julian, T. R.; Baugher, J. D.; Rippinger, C. M.; Pinekenstein, R.; Kolawole, A. O.; Mehoke, T. S.; Wobus, C. E.; Feldman, A. B.; Pineda, F. J.; Schwab, K. J. (2016) Murine norovirus (MNV-1) exposure in vitro to the purine nucleoside analog Ribavirin increases quasispecies diversity, Virus Research, 211, 165-173, doi:10.1016/j.virusres.2015.10.016, Institutional Repository
Ntozini, R.; Marks, S. J.; Mangwadu, G.; Mbuya, M. N. N.; Gerema, G.; Mutasa, B.; Julian, T. R.; Schwab, K. J.; Humphrey, J. H.; Zungu, L. I. (2015) Using geographic information systems and spatial analysis methods to assess household water access and sanitation coverage in the SHINE trial, Clinical Infectious Diseases, 61(S7), S716-S725, doi:10.1093/cid/civ847, Institutional Repository
Julian, T. R.; Islam, M. A.; Pickering, A. J.; Roy, S.; Fuhrmeister, E. R.; Ercumen, A.; Harris, A.; Bishai, J.; Schwab, K. J. (2015) Genotypic and phenotypic characterization of Escherichia coli isolates from feces, hands, and soils in rural Bangladesh via the Colilert Quanti-Tray system, Applied and Environmental Microbiology, 81(5), 1735-1743, doi:10.1128/AEM.03214-14, Institutional Repository
Fuhrmeister, E. R.; Schwab, K. J.; Julian, T. R. (2015) Estimates of nitrogen, phosphorus, biochemical oxygen demand, and fecal coliforms entering the environment due to inadequate sanitation treatment technologies in 108 low and middle income countries, Environmental Science and Technology, 49(19), 11604-11611, doi:10.1021/acs.est.5b02919, Institutional Repository
Julian, T. R.; Pickering, A. J. (2015) A pilot study on integrating videography and environmental microbial sampling to model fecal bacterial exposures in peri-urban Tanzania, PLoS One, 10(8), e0136158 (15 pp.), doi:10.1371/journal.pone.0136158, Institutional Repository

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Address

E-Mail: tim.julian@eawag.ch
Phone: +41 58 765 5632
Fax: +41 58 765 5802
Address: Eawag
Überlandstrasse 133
8600 Dübendorf
Office: BU F07

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Research Focus

Pathogen Fate and Transport, Quantitative Microbial Risk Assessment, Human Exposure Analyses.

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