Why Chikungunya May Be The Next Big Thing 6 legs

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Why Chikungunya May Be The Next Big Thing (6 legs)

• Greg Chrislip
• Public Health Entomologist
• May 2008

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Whats on the horizon?

• Chikungunya virus (CHIKV) first identified in
  Tanzania in 1953, and has been found in west,
  central and southern Africa and many areas of
  Asia.

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• The term chikungunya is thought to be derived
  from the word kungunyala in the Makonde
  language in southeastern Tanzania and Mozambique,
  which means to dry up or become contorted.

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• 2007 first time that local transmission of CHIKV
  through mosquitoes has been detected in Europe.
• Italy province of Ravenna, Emilia-Romagna

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• Other countries that have experienced recent
  outbreaks of CHIKV include India, Sri Lanka, and
  the Indian Ocean Islands Of Mayotte, Mauritius,
  Reunion (territory of France), and the
  Seychelles.

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How is Chikv Spread?

• Mosquitoes become infected with chikungunya virus
  when they feed on an infected person. Infected
  mosquitoes can then spread the virus to other
  humans when they bite them.
• Monkeys, and possibly other wild animals, may
  also serve as reservoirs of the virus.

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• Vectors Primary vector is Aedes aegypti, a
  container breeder and aggressive daytime biter.
• Stegomyia (Aedes) albopictus has played a role
  in transmission to people in SE Asia, Africa and
  Europe. Container breeder and aggressive daytime
  biter.

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Stegomyia (Aedes) albopictus
http//www.entm.purdue.edu/publichealth/images/mos
quito/popups/mosquito01.jpg
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World Distribution of Stegomyia (Aedes)
albopictus
http//www.landcareresearch.co.nz/research/biocons
/invertebrates/mosquitoes/Mosquitoes20of20New20
Zealand/images/albopictusDmap0.gif
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Map Distribution of Aedes albopictus in the
United States, by County, 2000
http//www.cdc.gov/ncidod/dvbid/arbor/albopic_97_s
m.htm
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• Here are four ways you can reduce your risk
• Mosquito-Proof Your Home
• Avoid Mosquito Bites long sleeved shirts and
  pants. Use repellents.
• Help Your Community
• Limit exposure to mosquito bites to prevent
  spreading of infection.