This map is reproduced with acknowledgment to the World Health Organization.
View larger image
The highest burden of disease occurs in SE Asia and the Western Pacific (Figure 1), but over the last few years there has been a rising trend in South America and the Caribbean [3].
Cases are also increasingly being reported outside tropical areas. The continued increase in urbanisation, population growth and global travel introduces the different serotypes into new populations.
DF is an emerging disease in parts of Europe; during 2010 locally acquired cases were reported in Croatia [6] and France [7]. In October 2012 the first locally acquired cases were reported in the Autonomous Region of Madeira [8].
To standardise the reporting of dengue and improve the quality and accuracy of dengue statistics, the World Health Organization (WHO) created DengueNet [9]. This is an online database for sharing current surveillance data in order to detect and monitor incidence and trends of DF and DHF. The number of cases of DF reported to the WHO has increased annually