Aedes aegypti, the mosquito that spreads Dengue fever.

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Aedes aegypti, the mosquito that spreads Dengue
fever.
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What is Dengue?
Dengue is a mosquito-borne viral infection that
is transmitted to human through the bite of the
female Aedes mosquito. Dengue fever is a severe,
flu-like illness that affects infants, young
children and adults but rarely causes death. This
disease used to be called break-bone fever
because it sometimes causes severe joint and
muscle pain that feels like bones are breaking,
hence the name. It can be caused by any one of
four types of dengue virus DEN-1, DEN-2, DEN-3,
and DEN-4. You can be infected by at least two,
if not all four types at different times during
your lifetime, but only once by the same
type. The 2 most severe forms of dengue are
Dengue Haemorraghic Fever (DHF) and Dengue Shock
Syndrome (DSS).
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Where is Dengue found?
Dengue viruses occur in most tropical areas of
the world. Dengue is common in Africa, Asia, the
Pacific, Australia, and the Americas. It is
widespread in the Caribbean basin. Dengue is most
common in cities but can be found in rural areas.
Dengue Lives in and around human habitations in
urban areas. It is rarely found in mountainous
areas above 4,000 feet.
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Breeding grounds for Aedes Aegypti
Buckets, pails bottles
Water storage tanks
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Discarded tires
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Characteristics of theAedes Mosquito

• One distinct physical feature
• black and white stripes on its
• body and legs.
• Bites during the day.
• Lays its eggs in clean, stagnant
• water.

Close-up of an Aedes mosquito
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Do you know.
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Life cycle of the Aedes Mosquito
Adult mosquito
1-2 days
Once laid, the eggs of a mosquito will take 7-10
days to become adult mosquitoes
Eggs
Pupae
4-5 days
2-3 days
Larve
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How Do Aedes Mosquitoes Transmit Diseases...
A mosquito that has been infected with the Dengue
virus is capable of infecting a person throughout
its life.
Symptoms of Dengue will usually appear after 4-6
days.
The incubation period for Dengue is 3-4 days.
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What are the signs and symptoms of Dengue?
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Dengue Fever
Fever Rash
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Dengue Hemorrhagic Fever
Subcutaneous hemorrhage in child with DHF
Hemorrhagic conjunctivitis
NASAL HEMORRHAGING
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Dengue Shock Syndrome
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Dengue Prevention What you need to know
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Personal protection against mosquitoes

• Apply repellent (20-30 DEET) to exposed skin-
  avoid eyes, mouth, and childrens hands
• Spray clothing with repellents with DEET or
  permethrin
• Use treated mosquito netting over bed
• Spray insecticide in room before going to bed,
  follow label instructions
• Wear long-sleeved shirts and long pants

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Indoor Outdoor application with thermal fog or
portable ULV unit
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Mosquito Net
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Mosquito Repellent Spray
Mosquito Repellent Coil
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This is what you can do to help
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Do not litter. Rubbish such as cups and bottles
can collect rain water and breed mosquitoes.
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Useful link.
Dengue fever on the rise in Sultanate BANDAR SERI
BEGAWANWednesday, March 10, 2010 THERE'S a
significant increase in dengue fever cases in the
country, said the Ministry of Health's
Environmental Health Division.Since January,
the division has recorded 35 cases compared to 38
cases for the whole of last year.For the first
time, two cases of dengue haemorrhagic fever have
been reported, a more virulent form of dengue
fever, where a patient bleeds through his skin,
nose or eyes.In an interview with The Brunei
Times yesterday, Head of Environmental Health
Division Dr Muhammad Hussein said the two victims
responded well to medical treatment and have
since fully recovered. http//www.bt.com.bn/news-
national/2010/03/10/dengue-fever-rise-sultanate