COVID-19 has had a rapid dissemination. Departing from China, the virus has traveled all around the world. With the use of accurate mathematical models, the global spread of the disease was anticipated. Some additional information to these predictive models could be provided by the comparison of freely available maps depicting commercial air travel routes and disease spread. This analysis informs on what seems to be a direct relationship between the initially unequal worldwide distribution of the disease and the density of the commercial air traffic. This comparison may also help to identify international distributional hubs of the disease out of China. The observation of this easily accessible information may contribute to the understanding of COVID-19 spill over and help health control policies to better focus on the spread of this and other aggressively spreading respiratory infectious diseases.
[Commercial airline routes and international distribution of COVID-19].