Public-private partnership (PPP) is a variation of privatization in which elements of a service previously run solely by the public sector are provided through a partnership between the government and one or more private sector companies. Unlike a full privatization scheme, in which the new venture is expected to function like any other private business, the government continues to participate in some way. These schemes are sometimes referred to for short as PPP or P3.
As a UN agency, the WHO is financed through the UN system by contributions from member states. In recent years, the WHO's work has involved more collaboration with NGOs and the pharmaceutical industry, as well as with foundations such as the Bill and Melinda Gates Foundation and the Rockefeller Foundation. Some of these collaborations may be considered public-private partnerships; half the WHO budget is financed by private foundations.