feature  | epiglottitis  | croup  | 
|---|---|---|
organism  | H. influenzae  | parainfluenza virus  | 
age  | generally 2-6 years old, may occur in older children and adults  | generally less than 2 years old, may occur in children 6 months to 6 years  | 
onset  | rapid  | gradual  | 
site  | supraglottic  | subglottic  | 
temperature  | high fever  | low grade fever  | 
dysphagia  | severe  | absent (mild)  | 
dispnoea  | +++  | variable  | 
drooling  | present  | not present  | 
stridor  | inspiratory or expiratory  | mainly inspiratory  | 
lymph nodes  | +++  | +  | 
cough  | not common  | barking cough  | 
voice  | muffled  | hoarse  | 
posture  | sitting forward  | lying down  | 
behaviour  | quiet; terrified  | struggling  | 
colour  | grey  | pink  | 
X-ray  | thumb sign (+)  | steeple sign (+)  | 
previous attack  | none  | may have had previous attack  | 
Note :
Children with epiglottitis rarely have a cough, which may help to distinguish it from laryngotracheobronchitis or 'croup' (1)
Reference
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page