![]() ![]() Hypermobility, which we demonstrate contributed to the mechanism by which global cities diffused COVID-19 initially, is also correlated with the global cities hierarchy, as supported by air travel data. This trend reached 90% in a subset based upon the urban hierarchy among global cities. Among our global cities sample, 75% served as the gateway through which COVID-19 was diffused within their respective countries. ![]() We demonstrate that most global cities followed a common pattern in the pace and intensity of COVID-19's spread during the first wave of the pandemic. To assess this transmission mechanism, we assembled data about the population and COVID-19 cases in global cities and their associated countries, comparing their infection rates on a fixed date. Our hypothesis is that global cities became the gateway by which COVID-19 was introduced to many countries through the hypermobility of infected international travelers. This article examines how mobility networks can turn global cities into Pandemic Gateways. ![]() The relationship between cities, globalization and mobility has produced recurring urban challenges over time. ![]()
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