IntroductionSince the beginning of the COVID-19 pandemic, the efficacy of various governmental interventions in stemming the spread of SARS-CoV-2 has been the source of much public debate. Through identification of those specific governmental interventions which have been most effective in stemming the spread of SARS-CoV-2, this research has the potential to help guide future governmental responses to the COVID-19 pandemic.ObjectiveTo determine the efficacy of various governmental interventions in stemming the spread of SARS-CoV-2.MethodsData pertaining to the number of daily cases of COVID-19 between February or March and August 15th, 2020 were collected from New York, Texas, Florida, Louisiana, California, Italy, and Sweden. We plotted these datasets as epidemiological curves and superimposed various governmental interventions onto them. We also superimposed May 25th onto the domestic curves to reflect mass gatherings following the death of George Floyd and to determine their effect on the spread of SARS-CoV-2.ResultsIn New York, Louisiana, Texas, Florida, and Italy, various governmental interventions appear to have had meaningful impact on the number of daily cases recorded and prevention of future outbreaks. California seemingly did not gain much benefit from these interventions. Sweden, despite no governmental intervention, experienced only a transient surge in daily cases.ConclusionsGovernmental interventions were largely effective in stemming the spread of SARS-CoV-2. Stay-at-home orders proved efficacious in decreasing daily cases quickly during ongoing outbreaks. Social distancing measures and mask mandates, meanwhile, proved to be effective in preventing subsequent outbreaks, at lesser economic and psychological costs.