Nikolina Walas, PhD, MPH
Postdoctoral Scholar
Proctor Foundation
Chancellor/EVC/FAS

Education & Training

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• PhD Environmental Health Sciences University of California, Berkeley 05/2025
• MPH Infectious Diseases and Vaccinology University of California, Berkeley 05/2022
• BS Microbiology, Immunology, and Molecular Genetics University of California, Los Angeles 06/2018

Interests

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• Antimicrobial resistance
• Seroepidemiology
• Immune dynamics
• Enteric pathogens
• Phylodynamics
• E. coli

Publications (10)

Top publication keywords:
Agricultural IrrigationDogsMicrobial Sensitivity TestsBayes TheoremDrug Resistance, BacterialAnti-Bacterial AgentsCarbapenemsbeta-LactamasesAnti-Infective AgentsEscherichia coli InfectionsEscherichia coliMultilocus Sequence TypingWaste Disposal, FluidEcuadorPlasmids

• Reconstructing pathogen-specific antibody binding epitopes and age-dependent immune signatures from proteomic-scale peptide libraries.
  medRxiv : the preprint server for health sciences 2025 Kamau E, Walas N, Zhang M, Kamath K, Reifert J, Shon J, Ali S, Rahman MZ, Shoab AK, Famida SL, Akther S, Hossen MS, Mutsuddi P, Rahman M, Mertens AN, Charles RC, Leung DT, Luby S, Lin A, Arnold BF
• Multiplex PCR Detection of Enteric Pathogens in a Community-based Birth Cohort in Ecuador: Comparison of xTAG-GPP and TaqMan Array Card Assays.
  Open forum infectious diseases 2025 Ayala ST, Simbaña Vivanco L, Walas N, Jesser K, Zhou NA, Fagnant-Sperati CS, Burroughs HR, Lee GO, Eisenberg JNS, Trueba G, Levy K, Arnold BF
• Lack of wastewater treatment in a small town drives the spread of ESBL-producing Escherichia coli in irrigation waters.
  Journal of environmental quality 2024 VanderYacht T, Salinas L, Remerleitch T, Walas N, Ho T, Trueba G, Graham JP
• Multiplex PCR detection of enteric pathogens in a community-based birth cohort in Ecuador: comparison of xTAG-GPP and TaqMan array card assays.
  medRxiv : the preprint server for health sciences 2024 Ayala ST, Vivanco LS, Walas N, Jesser K, Zhou NA, Fagnant-Sperati CS, Burroughs HR, Lee GO, Eisenberg JNS, Trueba G, Levy K, Arnold BF
• Analysis of Antibiotic Resistance Genes (ARGs) across Diverse Bacterial Species in Shrimp Aquaculture.
  Antibiotics (Basel, Switzerland) 2024 Mitchell TM, Ho T, Salinas L, VanderYacht T, Walas N, Trueba G, Graham JP

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• Application of phylodynamics to identify spread of antimicrobial-resistant Escherichia coli between humans and canines in an urban environment.
  The Science of the total environment 2024 Walas N, Müller NF, Parker E, Henderson A, Capone D, Brown J, Barker T, Graham JP
• Phylodynamics Uncovers the Transmission of Antibiotic-Resistant Escherichia coli between Canines and Humans in an Urban Environment.
  bioRxiv : the preprint server for biology 2023 Walas N, Müller NF, Parker E, Henderson A, Capone D, Brown J, Barker T, Graham JP
• The role of plasmids in carbapenem resistant E. coli in Alameda County, California.
  BMC microbiology 2023 Walas N, Slown S, Amato HK, Lloyd T, Bender M, Varghese V, Pandori M, Graham JP
• Clonal Lineages and Virulence Factors of Carbapenem Resistant E. coli in Alameda County, California, 2017-2019.
  Antibiotics (Basel, Switzerland) 2022 Slown S, Walas N, Amato HK, Lloyd T, Varghese V, Bender M, Pandori M, Graham J
• Genome Sequences of Cluster K Mycobacteriophages Deby, LaterM, LilPharaoh, Paola, SgtBeansprout, and Sulley.
  Microbiology resource announcements 2019 Gaballa JM, Dabrian K, Desai R, Ngo R, Park D, Sakaji E, Sun Y, Tan B, Brinck M, Brobst O, Fernando R, Kim H, McCarthy S, Murphy M, Sarkis A, Sevier P, Singh A, Wu D, Wu MY, Ennis HA, Luhar R, Miller …