Tetanus vaccination is part of the Norwegian childhood vaccination program. An elderly woman injured her arm and leg after a minor fall on her outdoor stairs. Two weeks later she presented with trismus. This developed into tetanic spasms, obstructed airways and the need for a tracheostomy. She died 14 days later due to pneumonia and multi-organ failure. ELISA for tetanus toxoid IgG was negative, probably because the patient was born before the introduction of tetanus vaccination in the Norwegian childhood vaccination program. Lack of adherence to the vaccination programs should be considered in patients presenting with symptoms resembling diseases they normally would be protected from. Although the patient presented with typical symptoms the diagnosis was not suspected initially, probably due to the rareness of this disease in Norway.