WHO Current Disease Outbreaks
Current outbreaks of infectious disease including that that can be prevented by vaccines.
WHO Data on Vaccine-Preventable Diseases
Gates Foundation
The Gates Foundation works with many other organizations, private, not-for-profit and governmental, to assure that vaccines are available and the systems in place to administer those vaccines, in countries that have the greatest challenges to raising immunization rates.
GAVI, Vaccine Alliance (previously the Global Alliance for Vaccines and Immunization)
A global partnership of UN agencies such as WHO and UNESCO along with global players such as the World Bank, vaccine manufacturers, research agencies and philanthropic organizations such as the Gates Foundation.