Economic development and improvement in living standards, as well as political liberation in China have contributed to the growth in international travel demand. Additionally, the supportive role of the Chinese government in outbound tourism development and China’s inclusion in the World Trade Organisation have and will ensure a continuing ease on travel restrictions, and enhance the opportunit...

Tourism is regarded to be the world's largest industry, with about 8% of the worldwide export value of goods and services coming from tourism. Receipts from international tourism are in the order of US$ 475 billion (2000 values). These benefits resulting from international travel can be weighted against the environmental costs of tourism, including the loss of biodiversity, ecosystems, land, an...

The number of travel-acquired dengue infections has been on a constant rise in the United States and Europe over the past decade. An increased volume of international passenger air traffic originating from regions with endemic dengue contributes to the increasing number of dengue cases. This paper reports results from a network-based regression model which uses international passenger travel vo...

BACKGROUND Planning for a possible influenza pandemic is an extremely high priority, as social and economic effects of an unmitigated pandemic would be devastating. Mathematical models can be used to explore different scenarios and provide insight into potential costs, benefits, and effectiveness of prevention and control strategies under consideration. METHODS AND FINDINGS A stochastic, equa...

After the emergence of the H1N1 influenza in 2009, some countries responded with travel-related controls during the early stage of the outbreak in an attempt to contain or slow down its international spread. These controls along with self-imposed travel limitations contributed to a decline of about 40% in international air traffic to/from Mexico following the international alert. However, no co...