In 2019 Murray joined Boston University as an Assistant Professor. Decision making in clinical medicine and public health requires complicated choices between treatment pathways. To evaluate the most effective approach, physicians typically make use of observational data and randomized controlled trials, but in the absence of these, decisions can be made using a agent-based models or individual-level simulation model. Of these, agent-based models are more versatile; they can combine data from various sources to make more generalised inferences. Murray applies these models to a variety of medical conditions, including HIV, cancer and cardiovascular disease. Murray became well-known for her use of social media, where she shares complex epidemiological concepts using Twitter threads and GIFs. During the COVID-19 pandemic, Murray partnered with Benjamin Linas to create a series of resources for the general public. The resources included an infographic on what to do if you have a positive test, contact tracing, and how to talk aboutcoronavirus disease to children. She shared the resources through GitHub and they were translated into several different languages. She argued that the epidemiology community should use the attention they received during the COVID-19 pandemic to help people understand what epidemiologists do. She was regularly interviewed by the media, explaining concepts such as herd immunity, social distancing, and how to travel safely in a post-pandemic world. As the pandemic progressed, people wanted information at faster rate than science was generating answers. Murray used social media to explain research findings and to debunk coronavirus-related pseudoscience. Amidst the confusion and misinformation, Murray collated a list of reputable coronavirus disease experts who were active on Twitter. In particular, people looked to understand what was and wasn't safe to do as the world opened up from lockdown. Murray explained that everyone faced a spectrum of risk, and that people had to learn how to assess what level of risk they were happy to take. As the virus spread around the world, fashion designers started to create novel face masks. Murray expressed her concern that designer face shields may not be effective in stopping the movement of SARS-CoV-2 through the air and my only act to change their direction.
