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Professional Status

Available soon
Open to opportunities

About Me

Ph.D in veterinary science, in applied microbiology, scientist, microbiologist, microbial biofilm researcher. Currently performing my post-doctoral research at University of California Santa Cruz, focusing on survival strategies of Helicobacter pylori, with a particular focus on biofilm and genes associated with this mode of growth.


Postdoctoral researcher

Univeristy of California, Santa Cruz
Since November 2016
Responsibilities completed
  • Investigating Helicobacter pylori biofilm formation and its potential role in pathogenesis in the lab of Dr. Karen Ottemann. I'm using transcriptomic and genetic approaches to identify genes associated with H. pylori biofilm growth. We also use mouse-models for H. pylori infections and imaging approaches (CSLM and SEM) to characterize the biofilm structure its components.

    1. Metabolic changes associated with Helicobacter pylori biofilm. S. Hathroubi, J. Zerebinski and K. M Ottemann (in preparation for npj Biofilms and Microbiomes)
    2. Helicobacter pylori biofilm involves a multi-gene stress-biased response, including a structural role for flagella. S. Hathroubi, J. Zerebinski and K. M Ottemann. 2018. mBio, doi:
    3. Helicobacter pylori biofilm formation and its potential role in pathogenesis. S. Hathroubi, S. L. Servetas, I. Windham, D. S. Merrell, K. M Ottemann. 2018. Microbiology and Molecular Biology Reviews. (published, doi: 10.1128/MMBR.00001-18)

Teaching experiences

Since May 2018
Responsibilities completed
  • Guest lecture microbiology and pathogenesis for undergraduates and graduates: Biofilm, the social life of microorganisms. University of California, Santa Cruz (Winter-Spring session 2018 and 2019)
  • Microbiology and pathogenesis METX 119-02 online, summer session online classes: Biofilm, the social life of microorganisms. Univeristy of California, Santa Cruz (Summer 2018)
  • Teaching course microbial pathogenesis 2 for Master’s degree, veterinary science: Surface polysaccharides and envelope (Part_1. Microbial envelope and Part_2. Surface polysaccharides). Université de Montréal (Fall session 2015)
  • Laboratory demonstrator for Master’s degree, veterinary science students: Basic practical microbiology. Université de Montréal. (2012- 2015)

Mentorship experiences

University of California, Santa Cruz
Since 2017
Responsibilities completed
  • Supervising undergrad student Yasmine E. (University of California, Santa Cruz) - since August 2018
  • Supervising Ph.D student Aaron C. (University of California, Santa Cruz) - since October 2017
  • Supervising undergrad student Julia Z. (University of California, Santa Cruz) - October 2017-September 2018
  • Supervising summer student Tyler Dewitt (University of California, Santa Cruz) - June-July 2017
  • Supervising student internship Sarah-Eve Fontaine-Gosselin (University of Montreal) Bachelor of Life Science, Sherbrooke University) - January-May 2014

Oral communications

Since 2010
Responsibilities completed
  • # Invited speaker to 5th Workshop on bacterial and fungal biofilms, Ghent University conference Center. May 2019. Unraveling the mystery of Helicobacter pylori biofilm.
    # Invited speaker to INRS-INSTITUT ARMAND-FRAPPIER October 2018. Helicobacter pylori biofilm and the unexpected role of flagella.
    # Invited speaker to 2nd Technology Seminar-SandBox (UCSC_Startup incubator) September 2018. Targeting the Helicobacter pylori impenetrable biofilm.
    # PBSE Research Conference 2018, Felton, California, USA. Unexpected role played by flagella during biofilm formation.
    # UC Biosafety officer meeting 2018, Santa Cruz, USA. New Insights into Helicobacter pylori biofilm.
    # WCBP Annual conference, 2017, Asilomar, California, USA. Novel genes associated with Helicobacter pylori biofilm growth.
    # CRIPA symposium, 2016, St-Hyacinthe, Québec, Canada. Actinobacillus pleuropneumoniae biofilms mitigate innate immune response.
    # ASM Biofilm, 2015, Chicago, USA. Actinobacillus pleuropneumoniae biofilms induce lower response of porcine alveolar macrophages.
    # CRIPA symposium, 2015, St-Hyacinthe, Québec, Canada. Effect of sub-inhibitory concentrations of penicillin G on Actinobacillus pleuropneumoniae biofilm formation.
    # Phd in 180sec (3MTMC) 2014, Science on stage, Faculté de médecine vétérinaire, St-Hyacinthe, Québec Canada. Best presentation 3rd prize. Rôle du biofilm dans la pathogénicité d’Actinobacillus pleuropneumoniae.
    # Congrès BiSP 2013, Université Laval, Québec, Canada. Rôle des polysaccharides de surface dans la formation du biofilm chez Actinobacillus pleuropneumoniae.

Reviser for international Peer-reviewed Journal

Peer-reviewed Journals
Since 2011
Responsibilities completed
  • # Referee/reviewer for Frontiers Microbiology
    # Referee reviewer for Journal of Infection in Developing Countries

Microbiology Research Internship

Groupe de recherche sur les maladies infectieuses du porc (GREMIP)
Since April 2011
Responsibilities completed
  • Site-directed mutagenesis (allelic exchange)
  • Immunodetection of extracellular polymeric substance (EPS)
  • EPS extraction (eDNA...)
  • Biofilms culture in static and dynamic conditions
  • Drip flow reactor
  • Enzymatic treatments on biofilms
  • Immunodot tests
  • Macrophages in vivo Infection
  • PBMC isolation
  • Lipid A extractions and structure analysis
  • Microscopies

Microbiology Research Internship

Centre National de Greffe de Moelle Osseuse, Faculté de médecine de Tunis
October 2009 to June 2010
Responsibilities completed
  • Antibiotic susceptibility tests and serotyping assay of P. aeruginosa clincal strains
  • Static biofilm formation and enzymatic treatments
  • Curcumin and berberine chloride test on biofilm
  • Biofilm genes identification
  • Swarming et twitching motility

Microbiology Research Internship

Institut de Biologie Moléculaire et Médecine, Université Libre de Bruxelles
January 2009 to June 2009
Responsibilities completed
  • E. coli chromosomal toxin antitoxin systems identification by PCR
  • Sequencing
  • Phylogenetic analyses

2014 to 2016
Responsibilities completed

Library assistant

Université de Montréal
September 2012 to 2016
Responsibilities completed
  • Assist students and teachers in location of print and non-print resouces
  • Check books and materials in and out to students and teachers using the computerized circulation system
  • Monitor student use of the library
  • Assist in maintaining the appearance of the library


Université de Montréal
Since September 2012
Responsibilities completed
  • Monitoring students during the writing of tests/exams