The Norwegian Institute of Public Health is responsible for maintaining and revising the list of notifiable diseases in Norway and participates in the European Centre for Disease Prevention and Control (ECDC) and the World Health Organization's surveillance of infectious diseases. The notifiable diseases are classified into Group A, Group B and Group C diseases, depending on the procedure for reporting the disease.
Group A diseases Group A diseases are reported with full patient identification by clinicians and laboratories. The copies of notifications are sent also to Municipal Medical Officer of the patient's municipality. As of 2018, 60 diseases have been classified as Group A diseases.
AIDS Anthrax Botulism Brucellosis Campylobacteriosis Cholera Co-infection HIV and tuberculosis Cryptosporidiosis Dengue fever Diphtheria Echinococcus Enteropathogen E. coli enteritis Giardiasis Haemophilus influenzae, systemic disease Hemorrhagic fever Hemolytic uremic syndrome, diarrhoea associated Hepatitis A Hepatitis B Hepatitis C HPV-infection causing cancer or pre-cancerous lesions Infection or carrier state of microbes with special resistance patterns Infection or carrier state of methicillin-resistant Staphylococcus aureus (MRSA) Infection or carrier state of Streptococcus pneumoniae with reduced susceptibility to penicillin Infection or carrier state of vancomycin resistant Enterococcus Influenza caused by virus with pandemic potential Legionellosis Leprosy Listeriosis Lyme borreliosis Malaria Measles Meningococcal systemic disease Mumps Hemorrhagic fever with renal syndrome (Nephropathia epidemica) Paratyphoid fever Pertussis Plague Pneumococcal systemic disease Poliomyelitis Q-fever Prion diseases Rabies Relapsing fever Rubella Salmonellosis Severe acute respiratory syndrome (SARS) Shigellosis Smallpox Streptococcus Group A systemic disease Streptococcus Group B systemic disease Tetanus Trichinosis Tuberculosis Tularaemia Typhoid fever Typhus (epidemic) Viral infections in the central nervous system West Nile fever Yellow fever Yersiniosis
Group B diseases Group B diseases are reported to the Norwegian Institute of Public Health after de-identifying the patient. The month and year of birth, gender, and municipality are reported. Copies of the notifications from clinicians are sent to the Municipal Medical Officer in the patient's municipality. This group of diseases includes gonorrhoea, HIV infection and syphilis.
Group C diseases Group C diseases are de-identified and the number of patients is reported from medical microbiological laboratories. This group includes genital chlamydia, Clostridioides difficile infection, and influenza-like disease (ILI). The number of Clostridioides difficile cases is reported monthly, genital chlamydia numbers are reported annually and influenza-like disease is reported weekly.
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