Rubella was first described in the 1750s but took until 1941 when Congenital Rubella Syndrome was characterized to become medically significant. Similarly, zika virus was discovered in 1947 but only made headlines in 2016 when its infection during pregnancy was associated with fetal microcephaly. Interestingly, despite zika being primarily a disease of the developing world and rubella historically being a world wide disease. Zika was found to have been studied and controlled al a much faster rate than rubella - particularly in the United Slates (U.S.). This correlation is further highlighted by the fact that there are currently no therapies or vaccines available for zika. A review of Thomas McKeown's work, the McKeown Thesis, provides insight into the U.S.'s successful zika control. The Thesis posits that broad based social efforts at the population level are more significant at affecting public health than narrow•based medical interventions at the individual level. The swift control of zika despite the lack of specific therapeutics suggests the McKeown Thesis's applications. This presentation will reflect on the progress and history of medicine within the past century and demonstrate the need for continued vigilance within the medical community.