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Key
areas and groups
Passive
smoking
The
Facts World Health Organization Western Pacific Region
EFFECTS OF PASSIVE SMOKE
IN CHILDREN
Foetus
• Smaller infants with smaller lungs
• More asthma symptoms in early childhood
• Increased airway response to smoke with loss
of tone and greater resistance
• Increased airway response later in childhood
Infant less than one year of age
• Increased asthma symptoms
• Increased irritation of the airways and lungs
• Higher exposure levels than older children
Children
• More likely to develop asthma
• Asthma is likely to worsen
• Lung growth is slowed
• Loss of tone in airways
• Increased immune reaction related to smoke
exposure
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