Prevention of Allergy and Allergic Asthma WHO/WAO Geneva, 2002
Early environmental and immunological factors are involved in the risk for development of allergy and allergic diseases. Avoidance of allergen exposure is only partially successful in prevention of IgE sensitization. Avoidance is difficult to implement, benefits are small, and long-term effects are doubtful. Infants at high allergy risk may benefit through avoidance of house dust mites, pets and cockroaches during the first year of life. Early exposure may, in some individuals, result in immunologic tolerance. Immunologic programming is initiated very early in life. It is driven by exposure to ubiquitous dietary and inhalant allergens, and modulated by microbial exposure that is absent from the fetal environment. Relative lack of microbial exposure, particularly early in life, may enhance the development of allergic diseases, but further research is needed in this field.
http://whqlibdoc.who.int/hq/2003/WHO_NMH_MNC_CRA_03.2.pdf

ARIA (Allergic Rhinitis and its Impact on Asthma)
The purpose and mission of ARIA - the world health initiative on allergic rhinitis, is to educate and implement evidence-based management of allergic rhinitis in conjunction with asthma, worldwide through planning, managing, and financing pilot projects to improve the health of broad sectors of the population throughout the world, setting up rural healthcare activities and providing support for preventive, diagnostic, and therapeutic measures as part of basic healthcare.
ARIA is a non-governmental organization working in collaboration with the World Health Organization.
http://www.whiar.org/

GINA
The Global Initiative for Asthma (GINA) works with health care professionals and public health officials around the world to reduce asthma prevalence, morbidity, and mortality. Through resources such as evidence-based guidelines for asthma management, and events such as the annual celebration of World Asthma Day, GINA is working to improve the lives of people with asthma in every corner of the globe.
www.ginasthma.com/

WAO
The World Allergy Organization is an international organization of 77 regional and national allergy and clinical immunology societies.
http://www.worldallergy.org/index.php

The mission for WAO is to be a global resource and advocate in the field of allergy, advancing excellence in clinical care through education, research and training as a world-wide alliance of allergy and clinical immunology societies. The organization offer several specialized educational programs in the field of allergic diseases.
http://www.worldallergy.org/educational_programs/gloria/international/materials.php