Soon after the global SARS outbreaks in 2003, and many years before the current novel coronavirus pandemic led to a historically unique shutdown of global air traffic, health experts anticipated the vital role air connections would play in the likely event of a worldwide zoonotic pandemic. In 2006, for example, the chief doctor at Frankfurt Airport observed, “In the context of globalization, we in Europe must assume that infection outbreaks on other continents will within 14–24 hours pose a considerable threat to our German population.”1 For medical and global historians, past relations between air traffic, plagues, and health policies present a promising, still largely unexplored research topic.2 Stranded last spring due to a COVID-19 flight ban myself, I started wondering how experts in epidemiology and sanitary control reacted to the rise of mass air travel. How did health experts cope with the breakthrough of the jet age in the 1960s and what were their strategies against the spread of contagious diseases by airplanes?
We are all historians of the present. At least we should be. Many fellow historians of knowledge are currently using a wide variety of media to share their experience and research in an effort to put the global response to the COVID-19 pandemic into context. Twitter is one medium where this conversation is especially lively, as Eileen Sperry has noted on Nursing Clio, a wonderful group blog that is also active on Twitter. One can find these parts of Twitter by searching for the relevant hashtags, for example, #histmed (history of medicine) and the much more generic #twitterstorians (historians on twitter).