About Comparative Medicine

Comparative Medicine deals with all aspects of activities related to animal experimentation in research at Karolinska Institutet.

Veterinarians, technicians, biomedical scientists, teachers and administrative personnel work here. We provide service and guidance on experimental animal research for researchers, doctoral students and other employees at Karolinska Institutet.

We also offer some of our services to those who research, study or work for other educational institutions or research laboratories in Sweden.

Specialists in experimental animal research

Photo: CM/KI.

At Comparative Medicine we are specialists in experimental animal research. We endeavour to develop the 3R principle (Reduce, Refine, Replace) in Karolinska Institutet's research using experimental animals.

Our objective is to support research and education to improve human health. An ethical approach and ensuring a humane environment for both animals and humans at Karolinska Institutet are fundamental to our work.

Comparative Medicine acts as a resource regarding permits issues in research that include animals.That includes acting as a link between Karolinska Institutet and other bodies that regulate how experimental animals may be used in research, for example the Swedish Board of Agriculture. Comparative Medicine has the administrative responsibility for theAnimal Welfare Body at Karolinska Institutet.

What does Comparative Medicine mean?

Comparative medicine is the name of a field of research in experimental medicine in which a study is made of:

  • naturally occurring and experimental animal models of human disease
  • the etiopathogenesis, epidemiology, diagnosis, therapy and prevention of infectious and noninfectious diseases of laboratory animals
  • the normal biology of experimental animals in relation to that of humans.

We who work at Comparative Medicine do however not undertake any research of our own. Researchers who wish to engage us and our service are welcome to contact us.

Animal experiments at Karolinska Institutet

The mission of Karolinska Institutet is to improve people's health through research and education. Basic and clinical research contribute to develop new forms of treatment. Some of the research is carried out using test-tube experiments. But it is not yet possible to replace all use of experimental animals in research with alternative methods.

Research and experiments conducted on animals is strictly regulated and is governed by Swedish and EU legislation on animal protection. Read more about Animal experiments at Karolinska Institutet.


Comparative Medicine at Karolinska Institutet was created in 2010 and has the same independent position as a department. The mission is to organize, develop and operate Karolinska Institutet’s infrastructure for research involving laboratory animals.

CM is also responsible for education and training in Laboratory Animal Science (LAS) under Directive 2010/63/EU.

Comparative medicine today contains various service- and animal facilities. Staff members are also dedicated to infrastructure, technical service and maintenance, IT support, finances, communications and human resources at the department.

Contact us

Comparative Medicine Management

Head Lotta Jansson

Admin Head Camilla Fors Holmberg

E-mail: km@ki.se

Address: Comparative Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden

Head of Comparative Medicine

Lotta Jansson

E-post: lotta.jansson@ki.se

Head of administration

Camilla Fors Holmberg

E-post: camilla.fors.holmberg@ki.se


Comparative Medicine is comprised of several units, located on Campus Solna.

Administration/Executive office

E-mail: km@ki.se

Address: Comparative Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden

Education & Training Unit

Education in laboratory animal science

E-mail: las-edu@km.ki.se

Registry Office

E-mail: registrator@km.ki.se

Address: Comparative Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden

Financial administration

E-mail: ekonomi@km.ki.se

Supplier's invoices

All purchases within the public sector are required by law to be electronically invoiced (e-invoicing). More information about Electronic invoicing at Karolinska Institutet.

Technique and services

E-post: km-teknik@km.ki.se


E-post: km-transport@km.ki.se

Delivery address

Please check with the person who placed the order.

Org.reg. no.


VAT number


Komparativ Medicin