Table 1.

Definitions of social net benefit measures

Name	Definition
Avoided COI net benefits	[Cases avoided * (private+public COI per case)]
	– (acquisition costs+delivery costs+travel and time costs)
VSL+avoided COI net benefits	[Cases avoided * (private+public COI per case)]
	+ (deaths avoided * value of statistical life)
	– (acquisition costs+delivery costs+travel and time costs)
WTP+avoided public COI net benefits	(Willingness-to-pay per person for vaccine)
	+ (cases avoided * public COI per case)
	– (acquisition costs+delivery costs+travel and time costs)

COI=Cost-of-illness; VSL=Value-of-statistical-life; WTP=Willingness-to-pay