Table 2.

Classification of PPPs

Buse and Walt (2000b)	Nishtar (2004)	Widdus (2001)
Product-based partnerships	Improving access to healthcare products	Distributing a donated or subsidized product, to control a specific disease
Product development partnerships	Product development	Developing a product
Systems/issues-based partnerships	Global coordination mechanisms	Disease control through product donation and distribution
	Strengthening health services	Strengthening health services
	Public advocacy and education	Educating the public
	Regulation and quality assurance	Improving product quality or regulation
		Coordinating multifaceted efforts