the system of social protection in health also sought to inject new resources into the health system and improve resource transfers between federal government and the states indeed public investment in the health system rose from to gdp between and having operated as a pilot programme between and and following reforms to the legal framework underpinning mexico s health system seguro popular sp was fully launched in january some important highcost interventions remain excluded from the sp package as discussed in chapter the significant increase in sp affiliation also represents a significant increase in total population coverage and an important step towards universal health coverage uhc