Summary Respiratory tract infections were the most prevalent of those found in the survey, being diagnosed in 30·2 per cent of the 3473 infected patients. They were divided into upper respiratory infections (in 4·8 per cent of infected patients, a rate of 0·9 per cent overall) and lower respiratory infections (24·5 and 4·7 per cent). Most of the latter were acquired in the community (16·4 and 3·1 per cent). The distribution of these infections by sex, age and speciality is presented, and the organisms found in association with them are recorded.