Tetanus immunisation in the elderly population

Objective-To emphasise that tetanus still occurs in the United Kingdom, particularly in elderly people - as illustrated by two case reports - and to examine the state of tetanus immunity in elderly people. Methods-111 elderly people (over 65 years) were studied: 43 males, mean age 77.7 years, range 67-94; 68 females, mean age 81.3 years, range 67-95. They were either attending the accident service or were hospital inpatients. An attempt was made to obtain an immunisation history and antitetanus antibody titres were measured. Results-Immunisation history was uncertain and unreliable. Measurement of antibody titres showed that they were inadequate to ensure protection in 50% of those studied. Low levels were particularly prevalent in the over 80 age group and in females. Questioning about military service confirmed that this had predominantly involved males. Conclusions-Elderly people are at risk of contracting tetanus and should be targeted for community immunisation. Extra precautions in the form of passive immunisation with human anti-tetanus immunoglobulin should be used in this age group in addition to the usual wound management measures when the elderly sustain tetanus prone injuries.