Amy R. Sapkota Environmental Microbial Genomics Group

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Laboratoire Ampere
Ecole Centrale de Lyon . France
(33) 472 18 65 14

Education | Research Interests | Publications | Curriculum Vitae

  Amy Sapkota  
  Amy R. Sapkota
Ph.D., M.P.H.

Current address:
University of Maryland College Park School of Public Health
MD Institute for Applied Environmental Health
2308 SPH Building
College Park, MD 20742
  Phone: (1) 301-405-1772
Fax: (1) 301-405-8397




Post-Doc, Environmental Microbial Genomics Group, Ecole Centrale de Lyon, University of Lyon,Lyon, France

Ph.D. Environmental Health Sciences (Environmental Microbiology), 2005, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD
Howard Hughes Medical Institute Pre-Doctoral Fellow in Biological Sciences
Certificate in Risk Sciences and Public Policy, 2002

M.P.H. Environmental Epidemiology and Environmental Health Policy, Yale University School of Public Health, 1999, New Haven, CT

B.S. Biology, 1997, University of Maryland at College Park, College Park, MD
Phi Beta Kappa, summa cum laude


My research interests lie in the areas of microbial environmental exposure assessment and environmental epidemiology, with a focus on evaluating the complex relationships between the environment, food and water production systems, and human infectious diseases. Current research projects include: 1) evaluating the dissemination of antibiotic-resistant bacteria and resistance genes from agricultural sources into air, surface water, groundwater, soil and food products, and understanding how this may contribute to rises in antibiotic-resistant bacterial infections in humans; and 2) utilizing metagenomic methods to understand total bacterial and viral biodiversity in environmental samples including soil, food, air and other commercial products. Other interests include the environmental and human health impacts associated with the discharge of wastewater treatment effluent into the Chesapeake Bay (Maryland, USA) and the dissemination of transgenes from genetically modified organisms (corn and soy plants) into groundwater and surface water sources.

top PUBLICATIONS (NOTE: Maiden name is Chapin)


Sapkota AR, Curriero FC, Gibson KE, Schwab KJ. 2007. Antibiotic-resistant enterococci and fecal indicators in surface waters and groundwater impacted by a concentrated swine feeding operation. Environmental Health Perspectives doi:10.1289/ehp.9770 [Online 22 March 2007].

Sapkota AR, Lefferts LY, McKenzie S, Walker P. 2007. What do we feed to food production animals? A review of animal feed ingredients and their potential impacts on human health. Environmental Health Perspectives doi:10.1289/ehp.9760 [Online 8 February 2007].

Sapkota AR, Ojo KK, Roberts MC, Schwab KJ. 2006. Antibiotic resistance genes in multidrug-resistant Enterococcus spp. and Streptococcus spp. recovered from the indoor air of a concentrated swine feeding operation. Letters in Applied Microbiology 43, 534-540.

Sapkota AR, Price LB, Silbergeld EK, Schwab KJ. 2006. Arsenic resistance in Campylobacter spp. isolated from retail poultry products. Applied and Environmental Microbiology 72, 3069-3071.

Rule AM, Chapin AR, McCarthy S, Gibson KE, Schwab KJ, Buckley TJ. 2005. Assessment of an aerosol treatment to improve air quality in a swine concentrated animal feeding operation (CAFO). Environmental Science & Technology 39, 9649-9655.

Wu HM, Fornek M, Schwab KJ, Chapin AR, Gibson KE, Schwab E, Spencer C, Henning K. 2005. A Norovirus outbreak at a long-term-care facility: the role of environmental surface contamination. Infection Control and Hospital Epidemiology 26, 802-810.

Chapin AR. 2005. Non-therapeutic use of antimicrobials in concentrated animal feeding operations and the presence of antibiotic-resistant and arsenic-resistant bacteria in environmental samples and retail meats. Dissertation. Johns Hopkins University Bloomberg School of Public Health. Baltimore, MD.

Chapin A, Rule A, Gibson K, Buckley T, Schwab K. 2005. Airborne multi-drug resistant bacteria isolated from a concentrated swine feeding operation. Environmental Health Perspectives 113, 137-145.

Chapin AR, Carpenter CM, Dudley WC, Gibson LC, Pratdesaba R, Torres O, Sanchez D, Belkind-Gerson J, Nyquist I, Karnell A, Gustafsson B, Halpern JL, Bourgeois AL, Schwab KJ. 2005. Prevalence of Norovirus among United States visitors to Mexico and Guatemala who experience traveler’s diarrhea. Journal of Clinical Microbiology 43, 1112-1117.

Hathcock AL, Nace C, Johnson D, Quimbo R, Venezia R, Chapin A, Cline JS, Buckheit K, Webb P, Ball R, Scruggs N, Jenkins S, Peipins LA, Monti M, Brooks M. 2000. Surveillance for possible estuary-associated syndrome–six states, 1998-1999.  Morbidity and Mortality Weekly Report 49, 372-373.

Chapin AR, Venezia R. 2000. A Message About Cancer Clusters from the Maryland Department of Health and Mental Hygiene. Office of Environmental Health, Maryland Department of Health and Mental Hygiene. Baltimore, MD.  

Chapin AR, Boulind C, Moore A. 1998. Controlling Odor and Gaseous Emission Problems from Industrial Swine Facilities: A Handbook for All Interested Parties. The Kerr Center for Sustainable Agriculture. Poteau, OK. 

In Preparation  
Sapkota AR, Navarro E, Vogel T. Antibiotic resistance genes in culturable bacteria and metagenomic DNA recovered from swine manure and soil. [In preparation].

Joseph SW, Wagner DD, Hayes JR, Sapkota AR, Cullen P, Paramadhas M, Hulett M, Hooberman B, Carr LE. Comparison of the prevalence of multiple antibiotic resistance of Salmonella spp. and Enterococcus faecium isolated from organic, antibiotic-free and conventional U.S. poultry farms. [In preparation].

Sapkota A, Sapkota AR, Kucharski M, Burke J, McKenzie S, Walker P, Lawrence R. Aquaculture and human health: Current knowledge and future priorities. [In preparation].


2007 - present: Assistant Professor, Maryland Institute for Applied Environmental Health, College of  Health and Human Performance, University of Maryland, College Park, MD

2005 - 2007: Post-doctoral researcher, Environmental Microbial Genomics Group, Lyon, France

2001 - 2006: Research Director (part-time), Johns Hopkins Center for a Livable Future, Bloomberg School of Public Health, Baltimore, MD

1999 - 2001: Environmental Epidemiologist and Acting Director of the Office of Environmental Health, Maryland Department of Health and Mental Hygiene (DHMH), Baltimore, MD

1998 - 1999: Student consultant, Kerr Center for Sustainable Agriculture, Poteau, OK, and the Yale Law School Environmental Protection Clinic, New Haven, CT

Summer 1998: National Network for Environmental Management Studies Fellow, U.S. Environmental Protection Agency (EPA), Office of Resources and Development, Washington, D.C.