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Samantha Gruenheid, PhD, is a Full Professor and Chair of the Department of Microbiology & Immunology at McGill University. She has expertise in bacterial pathogenesis and host-pathogen interactions governing intestinal infections. When not at the lab, she can be found at the gym or cuddling on the couch with her dog, Charlie.


Dr. Gruenheid has been a recipient of a Canada Research Chair (Tier 2), a Senior Research Scholar award from the Fonds de Recherche du Quebec and is the Canadian Association of Gastroenterology Visiting Research Professor for 2019/2020. Her laboratory is currently supported by funding from CIHR, NSERC, Genome Canada/Genome Quebec and FRQNT. She is a member of the McGill Center for Research on Complex Traits and an Associate member of the McGill Microbiome and Disease Tolerance Center.


Lei Zhu, Research Technician. After graduating from McGill University, Lei never left her Alma Mater and started working in Dr. Gruenheid's lab that summer. Throughout the years, she met many interesting undergraduate students, some who became her friends. Her research was concentrated on mouse genetics as a model for human bacterial intestinal infections. She enjoys a glass of wine while reading a good book, and relaxing massages outside work.


Alex Kazanova, Research Associate. After four years of practice as a pediatrician she completed her PhD in immunology in the Mechnikov Research Institute for Vaccine and Sera in Moscow, Russia. Later she worked as a Post-doctoral fellow in the lab of Christopher E. Rudd at the Centre de recherche de l'Hôpital Maisonneuve-Rosemont in Montreal, where she studied the role of PI3K/Akt/GSK-3 pathway in T cell exhaustion. Her work focuses on adaptive immune response against DA neurons triggered by gastrointestinal tract infections in mouse models of Parkinson’s disease. When she’s not around the lab, Alex enjoys gardening and spending time with her children.

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Nathalia Luisa Oliveira, Post-doctoral fellow. Nathalia received her Ph.D. in Genetics from Universidade Federal de Minas Gerais, Brazil. She has been working with functional genetics, inflammatory diseases, lung infection, neutrophilic response, intestinal inflammation, and helminth-based therapies. Her previous research focused on the mechanisms involved in the effect of helminth-derived metabolites-induced tolerogenic dendritic cells in experimental colitis. Her expertise includes microbiology, immunology, molecular biology, genetics, and host-pathogen interactions.


Lucia Guerra, Research Technician. Lucia obtained her Bachelor's in Biochemistry from McGill in 2019, after which she worked as an Animal Care Technician and as a Laboratory Technician. She is an animal lover and in her free time she enjoys textile crafts and learning about fashion history.


Lindsay Burns, PhD candidate. Lindsay is a PhD5 student working on characterizing bacterial effectors in pathogenic strains of E. coli to better understand host-pathogen interactions in the intestinal tract. Outside the lab, Lindsay enjoys attempting to keep her plants alive, reading sci-fi novels, and searching for turtles.


Jessica Pei, PhD student. Jessica is a 2nd year PhD student working on investigating the role of intestinal myofibroblasts and fibroblasts in inflammation and infection. In her spare time she enjoys eating tons of snacks, teaching dance classes, and binging Netflix shows.


Morgane Brouillard-Galipeau, MSc student. Morgane is a 2nd year Master's student and is working on the link between Parkinson's Disease and the gut microbiome. She graduated from McGill’s Microbiology and Immunology Honour’s program, where she worked on Leishmania. In her free time, she enjoys drawing, reading, and baking. 


Jacqueline Sung, MSc Student. Jacqueline is a 2nd year Master's student working on the YAP/TAZ effectors of the Hippo pathway in the gastric epithelium. She graduated from McGill’s Microbiology and Immunology Honour’s program where she did her training in virology. Outside of the lab, she enjoys hiking, biking, and building legos.  

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Wimmy Miller, MSc Student. Wimmy recently graduated from McGill's Intradepartmental Honours in Immunology program. In her free time, she enjoys running, petting dogs, practicing French, and reading everything from the back of shampoo bottles to Russian literature.


Elyssia Ieropoli, Honor's Student. Elyssia is finishing her Bachelor's in Microbiology and Immunology with a minor's in finance. When she's not at the lab, she can be found studying hard or cuddling with her dog.


Charlie, Animal Representative. Currently studying who is a good boy. Hypothesis: it's him. Charlie likes going on walks, receiving cuddles, and looking adorable. Give him a follow on Instagram @charlie_goobboi.


Donato, Honorary Member. Donato is a kind soul who watches over the Gruenheid lab from his windowsill throne. He smiles upon all the experiments being conducted and blesses each with good luck. In his free time, Donato likes to participate in trivia, play Animal Crossing, and grow some shoots.


Christina Gavino, Research Assistant

Hicham Bessaiah, PDF

Brendan Cordeiro, PhD

Tyler Cannon, BSc Honours, PhD

Gabriella Spiegler, BSc Honours

Elena YH Lin, Research Assistant

Tiffany Leung, BSc

Natalia Giannakopoulou, BSc, PhD

Eugene Kang, BSc Honours, PhD

Mitra Yousefi, PDF

Alanna Crouse, MSc

Anshul Sinha, MSc

Emma Hignett, BSc Honours

Naim Afeich, BSc Honours

Travis Ackroyd, BSc, MSc

Isabelle Desloges, BSc Honours, MSc

Olivier Papapietro, PDF

Daisy Ji, BSc Honours

Jenny-Lee Thomassin, PhD

Ajitha Thanabalasuriar, BSc, PhD

Sarah Teatero, BSc Honours, MSc

Raven Comery, BSc Honours

Kevin Harmidy, MSc

Jordan Quenneville, BSc

Mark Mimee, BSc Honours

Julienne Kaiser, BSc Honours

Eduardo Diez, PDF

Julianna Blagih, BSc Honours

Akira Gillingham, BSc Honours

Nancy Rutherford, PhD

Alex Albanese, Research Technician

Keyrillos Rizg, MSc

Monica Chang, BSc Honours

Allison Mockler, BSc Honours

Eve Neesham-Grenon, BSc

Tessa Chaworth-Musters, BSc Honours

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