For many of us, rubella has simply come to mean the R in MMR, the routine childhood measles, mumps, and rubella vaccine. But that hasn’t always been the case. There was once a time when the rubella virus routinely made front page news and was at the center of countless legal discussions. This week, we explore everything you’ve ever wanted to know about this virus. We start off by asking what this virus does to your body and how it can cross the placenta, leading to congenital rubella syndrome. Then we journey through the short but impactful history of this disease, from the discovery of the effects the virus can have on a developing fetus to the widespread epidemics that spurred on the development of a vaccine. Finally we wrap up with some much-needed good news about the global decline of rubella and congenital rubella syndrome.