Global Alert and Response (GAR)

Risk of international spread

The risk of international spread is greater than before. In the past devastating outbreaks occurred mainly in sea ports. Today, most cities are connected to most of the world by more rapid means of transport, train or plane. So far, the virus circulation has remained within the borders of historically endemic countries, but the virus could spread quickly and cause epidemics in areas with a high density of vectors and a non immune population.

For more details, see the International Health Regulations (IHR) and International Travel and Health (ITH) websites.

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