A 'resources' class was elevated in importance when consultations reinforced the importance of the many types of infrastructure on which today's public health relies: physical infrastructure (e.g. sewers, public health laboratories), organisational infrastructure (e.g. partnerships, legislative and regulatory systems), logistical infrastructure (e.g. vaccine cold chains) -systems that are seen by some as 'joined up' resources. There were diametrically opposed views of whether infrastructure was a subclass of resources or vice versa. In the short term this has been dealt with by amalgamating the two into a 'resources and infrastructure' class.