Communicable Diseases
HIV,tuberculosis,and malaria are just a few of the infectious diseases that continue to plague humankind,especially in the developing world.Mean while new threats such as avian flu and severs acute respiratory syndrome continue to emerge.With essential vaccines and immunizations still underprovided in many developing countries,communicable diseases are an international public health issue that has caught the attention of the global public and its leaders.There is increasing global awareness that communicable diseases do not respect national borders,and that how these diseases are health and for the global economy.