A comparative study of asthma, pollen, cat and dog allergy among pupils and allergen levels in schools in Taiyuan city, China, and Uppsala, Sweden

The aim of that study was to compare self reported asthma, asthmatic symptoms and pollen or pet allergies among pupils in the Chinese and Swedish schools with similar data . The allergens levels in settled and airborne dust were compared too, with very different ventilation and heating systems, different outdoor air pollution and different pet keeping. The results presented demonstrate large differences between respiratory symptoms and reports on asthma.