1. World Health Organization, Measles: WHO July 2017,WHO,Geneva,Switzerland, 2017
2. ECDC, European Centre for Disease Prevention and Control, Solna, Svezia, 2017
3. Measles in Italy: weekly bulletin,2017
4. Morbillivirus infections: an introduction;RD de Vries;Viruses,2015
5. Progress in reducing measles mortality: worldwide, 1999–2003;MMWR Morb Mortal Wkly Rep,2005