Intervention in previous large scale health promotion media campaigns has generally utilised the communication behaviour change framework.This entails using the media to deliver information on which the receiver can rationally act or not act. An alternative that used here is the social marketing approach, described by Kotler and Zaltman as "the explicit use of marketing skills to help translate present social efforts into more effectively designated and communicated programmes that elicit desired audience response."More recently Solomon has discussed the advantages of social marketing in public communication campaigns.