Researchers and experts about the situation in Ukraine

Researchers at Karolinska Institutet work in different ways to be available if, or when, society requests information about the situation in Ukraine. Here we gather resources at KI that can contribute with knowledge in their areas. The page is under construction.

Surgery in mass casualty incidents and conflict

Portrait of Carl Wahlgren in hospital clothing.
Photo: N/A

Carl Wahlgren, Professor in traumatology

Carl Wahlgren is a specialist in surgery and vascular surgery. He is head of operations and chief physician in vascular surgery at Karolinska University Hospital and adjunct professor of trauma surgery at Karolinska Institutet. His areas of expertise are research in bleeding and coagulation disorders after blunt and penetrating injury.

Pre-hospital care in mass casualty incidents

Therese Djärv. Photo: Fredrik Österholm
Photo: Fredrik Österholm

Therese Djärv, Professor in emergency care

Therese Djärv is a professor and chief physician in emergency care and a reserve officer in the Armed Forces. Her area of ​​expertise is clinical epidemiology in emergency care and specifically in the condition of cardiac arrest. She is head of the department of clinical medicine at the department of Medicine Solna (the department focuses on emergency internal medicine and emergency care). She is also involved in, above all, the medical students' education in disaster medicine.

Chemical incidents

Mattias Öberg
Photo: Private image

Mattias Öberg, associate professor and senior researcher

In connection with the war in Ukraine, there is a risk of emissions of dangerous chemicals. These are, for example, emissions that occur in connection with damage to chemical plants and the transport of dangerous goods. But it can also be about chemical weapons and highly toxic substances that have recently been used to poison political opponents in several countries. In his research, Mattias Öberg has studied in particular the risks of airborne substances, the effects on sensitive groups such as asthmatics, and how to calculate the relationships between dose and effect. He has also participated in the design of MSB's decision support regarding chemical events and teaches KI's master's students in disaster toxicology.

Radiation emergency medicine

Photo: Stefan Zimmerman

Leif Stenke, Professor of Internal Medicine and Hematology

Leif Stenke is a specialist in internal medicine and hematology. He is an associate professor at Karolinska Institutet, a member of the National Board of Health and Welfare's medical expert group for radiological and nuclear incidents (RN-MeG) and a member of Karolinska University Hospital's radiation protection committee.

Pediatric health in conflict

Tobias Alfvén. Photo: Andreas Andersson.
Photo: Andreas Andersson

Tobias Alfvén, pediatrician and researcher

Tobias Alfvén is an associate professor of global health and works clinically as a pediatrician. For the past 20 years, he has combined research, clinical work and work for the UN, both in the field and at headquarters. All with the overall goal of improving children's health, with a special focus on low-income environments. Tobias Alfvén heads the Center of Excellence for Sustainable Health.

Disaster medicine 

Johan von Schreeb outside Aula Medica. Photo: Andreas Andersson.
Photo: Andreas Andersson

Johan von Schreeb, Professor in Global Disaster Medicine

Johan von Schreeb at the Department of Global Public Health is a surgeon with extensive field experience from working in disasters globally and in Sweden. His areas of expertise include, organization, coordination and management of health and trauma care in disasters. He leads the center for research on health care in disasters and is the director of the KI's newly started center for health emergencies.


Photo: Mikael Wallerstedt

Filip Arnberg is an associate professor of clinical psychology and a licensed psychologist and program director for the Knowledge Center for Disaster Psychiatry at Uppsala University. His area of ​​expertise is psychological reactions to and consequences of traumatic events such as wars and disasters, as well as efforts to strengthen resilience and alleviate trauma. Email address:

Didn't you find what you were looking for?

Contact the KI Press Office

Phone: +46 8 524 860 77


Opening hours: Weekdays 9-20, weekends 9-17