Subject(s)

Humans , Animals , Child, Preschool , Child , Dogs , Asthma/virology , Bronchial Hyperreactivity/drug therapy , Bronchial Hyperreactivity/epidemiology , Bronchial Hyperreactivity/immunology , Bronchial Hyperreactivity/physiopathology , Histamine H1 Antagonists/pharmacology , Immunoglobulin E/immunology , Loratadine/immunology , Loratadine/pharmacology , Respiratory Hypersensitivity/drug therapy , Respiratory Hypersensitivity/epidemiology , Respiratory Hypersensitivity/immunology , Respiratory Hypersensitivity/physiopathology