I’m a physician training in internal medicine and translational researcher in immunology and infectious diseases.
I started my specialization in internal medicine in February 2020 at the Canisius Wilhelmina Hospital in Nijmegen, The Netherlands. I am specifically interested in infectious diseases and critical care, and I hope to further specialize in Intensive Care.
Besides clinical work I conduct research in immunology and infectious diseases. I am fascinated by how the cells of our own immune system can be optimized to fight off infection, which was the focus of my PhD research on malaria vaccines. I am currently also involved in multi-center studies on lung pathology and coagulopathy in Covid-19.
Beyond work I am an obsessive scuba diver, both right here in The Netherlands and abroad, and I teach CPR and First Aid to divers and medical interns.
A silly 3-min video about my PhD research
CV in short
CURRENT OCCUPATION
Resident (AIOS) internal medicine, Canisius Wilhelmina Hospital, Nijmegen
PhD POSITION | 2014 - 2018
Center for Clinical Malaria Studies, Department of Medical Microbiology, Radboud university medical center, Nijmegen
EDUCATION
MSc, Selective Utrecht Medical Master (SUMMA), University Utrecht
BSc, University College Utrecht, University Utrecht
Key publications
Reduced Vitamin K Status as A Potentially Modifiable Prognostic Risk Factor in COVID-19
A.S.M. Dofferhoff, … J. Walk* and R. Janssen*
Clinical Infectious Diseases, 2020
A Double-Blind, Placebo-Controlled Phase 1/2a Trial of the Genetically Attenuated Malaria Vaccine PfSPZ-GA1
M. Roestenberg* and J. Walk* et al.
Science Translational Medicine, 2020
Outcomes of Controlled Human Malaria Infection After BCG Vaccination
J. Walk and L.C.J. de Bree et. al
Nature Communications, 2019
Can Patrolling Liver-Resident T Cells Control Human Malaria Parasite Development?
J. Walk, J. E. Stok and R.W. Sauerwein, 2019
Trends in Immunology, 2019
Links to stories about our research
Gelderse tests op mensen en muizen in strijd tegen corona
Omroep Gelderland, 18 November 2020
Vitamine K en vitamine D tegen coronavirus
EditieNL, 24 October 2020
Vitamin K found in some cheeses could help fight Covid-19, study suggests
The Guardian, 05 June 2020
Nederlands malariavaccin vertraagt infectie, maar beschermt nog niet voldoende
Nieuwsuur, 20 May 2020
Vaccin tegen malaria werkt, maar is nog niet inzetbaar
De Gelderlander, 01 April 2019