2017 No https://doi.org/10.1080/02770903.2016.1255957 Takaoka, Motoko Asia Observational Epidemiology Study Exposure Study Students Middle/Jr High (6-8) Temperature Humidity Dust Allergens Respiratory symptoms Infections Asthma Respiratory symptoms Airway infection Students Japan Questionnaire and environmental measurements in Japanese junior high schools linked high humidity, student density, and airborne cat allergens to airway infections; findings underscore need for better indoor air quality in schools.