Dr Peruga began to work with the Pan American Health Organization in 1990. He was the leader of the tobacco control team of this organization until the beginning of 2006 when he moved to Geneva as the Coordinator for the capacity building unit of the Tobacco Free Initiative of the World Health Organization. In Spain, he was the Director of the Research Institute on Health and Welfare in Madrid. He later became the Dean of the National School of Public health. When he came to the US in the early 1980's, he worked for the DC Commission of Public health as a behavioral change epidemiologist. Dr Peruga graduated in Medicine in Spain. He later graduated from Master's and Doctoral programs of the Johns Hopkins Bloomberg School of Public Health.