Table 1.

Acute Respiratory Infection (ARI) case definition and classification

Age group	Condition items	Category	Nurse grading of ARI
<2 months	Any one of following danger signs: Convulsions; Fast breathing (60 breaths/ min); Severe chest in drawing; Nasal flaring; Grunting; Bulging fontanel; 10 or more skin pustules or a big boil; If axillary temperature 37.5 °C or above (or feels hot to touch) or temperature less than 35.5 C (or feels cold to touch); Lethargic or unconscious; Less than normal movements	Possible serious bacterial infection	Acute Lower Respiratory Infection
	None of the above mentioned signs or symptoms and presence of respiratory symptoms (except sore throat)	Non-serious bacterial infection	Acute Upper Respiratory Infection
	Presence of any one of the following general danger signs: convulsions; Inability to drink or feed or breastfeed; Lethargy or unconsciousness; Vomits everything; and/or any one of the following:	Severe pneumonia or very severe disease	Acute Lower Respiratory Infection
	Chest in-drawing
	Stridor in calm child
2 months	Fast breathing (with age-specific cut-off rates)	Pneumonia	Acute Lower Respiratory Infection
10 years	2 months - 12 months: 50 breaths/min
	12 months - 5 years: 40 breaths/min
	5–10 years: 30 breaths/min
	No signs of pneumonia or very severe disease but presence of any of the symptoms of ARI	No pneumonia -cough or cold	Acute Upper Respiratory Infection

ARI was defined as occurrence of a new onset or worsening of one or more of the following five symptoms: cough, sore throat, nasal congestion, earache or discharge, breathing difficulty