“…In the selected articles, the events considered under surveillance were: communicable diseases 46,47 , non-communicable diseases 48,49 , birth defects 50,51 , violence 52 , and a wide variety of environmental risks 53,54,55,56,57 . Recent years have witnessed an effort by WHO, PAHO, national governments (including Brazil), and nongovernmental organizations in the search to establish and development surveillance capability for chronic non-communicable diseases, and many countries have already designed systems for the surveillance of chronic disease risk factors 58 .…”