Among the many new terms that have crept into our daily language, contact tracing has become one of the most frequently heard in connection with COVID-19. Contact tracing is a traditional public health strategy that has been used to fight the spread of everything from the common flu to the AIDS virus. We often hear public health officials talk about the need to employ contract tracing to not only get the current pandemic under control but to keep the virus from flaring up once we start to reopen cities and states.