Dengue fever outbreaks

Worldwide dengue distribution, 2006. Red: Epidemic dengue. Blue: Aedes aegypti.
Disability-adjusted life year for dengue fever per million inhabitants in 2012.
  no data
  0-0
  1-1
  1–45
  47–87
  92–141
  143–330
  346–356
  367–440
  496–37,325
Average annual number of DF cases and DHF cases reported to WHO

As of 2010, dengue fever is believed to infect 50 to 100 million people worldwide a year with 1/2 million life-threatening infections.[1] It dramatically increased in frequency between 1960 and 2010, by 30 fold.[2] This increase is believed to be due to a combination of urbanization, population growth, increased international travel, and global warming.[1] The geographical distribution is around the equator with 70% of the total 2.5 billion people living in endemic areas from Asia and the Pacific.[2] Many of the infected people during outbreaks are not virally tested, therefore their infections may also be due to chikungunya, a coinfection of both, or even other similar viruses.

  1. ^ a b Whitehorn J, Farrar J (2010). "Dengue". British Medical Bulletin. 95: 161–73. doi:10.1093/bmb/ldq019. PMID 20616106.
  2. ^ a b WHO 2009 pg.3