Key populations NA Key recommendations Public health policy-makers must be cognizant that large-scale public health efforts must be accessible to all people across all socio-economic levels Key findings The measles outbreak of 2013/2014 involved the entirety of Alberta and led to both provincial and city-specific interventions in which Calgary deployed three mass immunization clinics in 2014, where Edmonton did not. The Calgary coverage data showed an increase in coverage inequalities across all indicators and the Edmonton data showed mixed results in terms of equity gains/losses. Calgary’s additive intervention of three mass immunization clinics in 2014 appears to have contributed to both the higher gross immunization rates in Calgary (90.77%) and an inequitable increase in coverage rates as compared with Edmonton (88.96%), in most cases. Gaps identified NA Community organizations NA Location Calgary, Alberta; Edmonton, Alberta Open-access – Yes https://link.springer.com/article/10.17269/s41997-021-00578-5 Integration timeline At what point during the integration process the study was conducted? NA