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Meghan Frost Davis, PhD, DVM

  • Associate Professor

Departmental Affiliations

Center & Institute Affiliations

Contact Information

615 N. Wolfe Street
Baltimore, Maryland 21205


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PhD, Johns Hopkins Bloomberg School of Public Health, 2012
MPH, Johns Hopkins Bloomberg School of Public Health, 2008
DVM, University of California, Davis, 2000


As a molecular epidemiologist and an environmental microbiologist, I study the interface of bacteria and hosts to reduce microbe-mediated disease in humans and animals. My work applies the principles of one health and microbial ecology, evaluating target microbes and bacterial genes specifically and the larger microbial community (microbiome) broadly. I also evaluate non-infection outcomes, specifically asthma, from exposure to bacterial agents and their toxic products. Designing and testing interventions to combat the rise of bacterial antimicrobial resistance and both infection and non-infection outcomes related to microbial exposures in a one health context is the goal of my research career.

Honors and Awards

Delta Omega, 2008

Cornelius W. Kruse Award in Environmental Health, 2010

Johns Hopkins SPH Student Assembly Recognition Award, 2010

Faculty Innovation Fund award, 2015

  • antimicrobial resistance
  • asthma
  • environmental epidemiology
  • environmental microbiology
  • microbial ecology
  • microbiome
  • MRSA
  • MRSP
  • one health
  • staphylococci
  • veterinary medicine

Selected publications from the last five years:

  • Davis MF, Iverson SA, Baron P, Vasse A, Silbergeld EK, and Lautenbach EB*, Morris DO*. The role of the household in transmission of meticillin-resistant Staphylococcus aureus and other staphylococci. The Lancet Infectious Diseases 2012, 12(9):703-716.

  • Davis MF and Rutkow H. Regulatory strategies to combat antimicrobial resistance of animal origin: recommendations for a science-based U.S. approach. Tulane Environmental Law Review 2011-12, 25.

  • Iverson SA*; Brazil AM*; Ferguson JM, Nelson K; Lautenbach E; Rankin SC; Morris DO; and Davis MF. Anatomical patterns of colonization of pets with staphylococcal species in homes of people with methicillin-resistant Staphylococcus aureus (MRSA) skin or soft tissue infection (SSTI). Veterinary Microbiology 2015, 176(1):202-208.

  • Davis MF, Peng RD, and McCormack MC*, Matsui EM*. Staphylococcus aureus colonization is associated with wheeze and asthma among U.S. children and young adults. Journal of Allergy and Clinical Immunology 2015, 135(3): 811-813.

  • Davis MF; Misic AM; Morris DO; Moss JT; Tolomeo P; Beiting D; Nachamkin I; and Lautenbach E*; Rankin SC*. Genome sequencing reveals strain dynamics of methicillin-resistant Staphylococcus aureus in the same household in the context of clinical disease in a person and a dog. Veterinary Microbiology 2015, ahead-of-print.