It takes two doses of measles vaccine to protect children from the disease. A troubling new report from UNICEF finds that 2.5 million children in the United States and 169 million children worldwide missed out on their first dose between 2010 and 2017.
원문출처 : https://www.cnn.com/2019/04/24/health/measles-vaccine-children-unicef-report-intl/index.html
원문출처 : https://www.cnn.com/2019/04/24/health/measles-vaccine-children-unicef-report-intl/index.html