Table 1

Gurd's criteria for diagnosis of FES

Major criteriaMinor criteria
Respiratory symptoms with characteristic radiographic features
Central nervous system signs not due to trauma or other condition
Petechial rash
Fever (>39°C)
Retinal changes (petechiae, fat, retinal haemorrhages)
Tachycardia (>120 beats per min)
Anuria/oliguria
Anaemia (haemoglobin drop by 20%)
Thrombocytopenia (drop by 50%)
High ESR (>71 mm in first hour)
Fat macroglobulinaemia
FES: at least one major plus any four minor criteria

ESR: erythrocyte sedimentation rate. Reproduced from [4] with permission from the publisher.