A presentation byA presentation byAhmad Tariq BhattiAhmad Tariq Bhatti

LahoreLahore

Dengue FeverDengue FeverDengue (pronounced as DENgee) fever is a painful, debilitating mosquito-borne disease caused by any one of four closely related

Dengue viruses.

Each year, an estimated 100 million cases of Dengue fever occur worldwide.

Dengue fever (also known as break-bone fever) spreading mosquito has challenged Punjab Government in the last 3 to 4

years. Government of Punjab has spent huge funds to fight against the killer mosquito.

It has affected thousands of people all over Pakistan in last 3 to 4 years.

Dengue - The Killer Mosquito 2

The Killer Mosquito – Dengue . Aedes Aegypti: Dengue Mosquito Aedes Aegypti: Dengue Mosquito

(a close shot of the killer mosquito)(a close shot of the killer mosquito)Dengue - The Killer Mosquito 33

The mosquito can be recognized by white markings on legs and a marking in the form of a lyre on the thorax. The mosquito originated in Africa but is now found in tropical and subtropical regions throughout

the world. [Please refer to slide 3 for illustration of Dengue Mosquito]

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Breeding PlacesBreeding PlacesBarrels, open sewerage holes, drums, jars, pots, buckets, flower vases, plant-pots, tanks, discarded bottles, tins, tyres, stagnant water, tree holes, palm

fronds and a lot more places where rain water is stored.

Keep your environment clean from Keep your environment clean from mosquitoes.mosquitoes.

Important note: The mosquito that causes Dengue fever, bites during the day, particularly in the early morning and in the

evening.

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TransmissionTransmissionDengue virus is primarily transmitted by Aedes mosquitoes,

particularly Aedes Aegypti. Other Aedes species that transmit the disease include:

Aedes Albopictus, Aedes Polynesiensis and Aedes Scutellaris. 

Humans are the primary host of the virus, but it also circulates in non-

human primates. An infection can be acquired via a single bite. A female mosquito that takes a blood meal from a person infected with Dengue fever

becomes itself infected with the virus in the cells lining its gut.

The virus is not contagious and cannot be spread directly from person to

person.

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ClassificationClassificationWorld Health Organization has classified

Dengue fever into two groups in 2009: Severe and Uncomplicated.Severe Dengue is defined as the one that is

associated with severe bleeding, severe organ dysfunction, or severe plasma

leakage while all other cases are classified as uncomplicated.

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SymptomsSymptomsDengue fever begins with a sudden high fever, often as high as

104 - 105 degrees Fahrenheit, within 4 to 7 days after the infection.

A flat, red rash may appear over most of the body within 2 to 5 days after the fever starts. A second rash, which looks like

the measles, appears later in the disease. Infected people may have increased skin sensitivity and are very uncomfortable.

Other symptoms include:FatigueHeadache (especially behind the eyes)Joint achesMuscle achesNauseaSwollen lymph nodesVomiting

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Causes & IncidenceCauses & Incidence

Dengue fever is caused by one of four different but related viruses. It is spread by the bite of mosquitoes,

most commonly the mosquito Aedes Aegypti.

The virus has four different types and the infection with one type usually gives lifelong immunity to that type,

but only short-term immunity to the others. Subsequent infection with a different type increases

the risk of severe complications.

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Dengue - The Killer Mosquito 10

Manifestations of Dengue Virus InfectionManifestations of Dengue Virus Infection

Dengue Virus Infection

Without Symptoms With Symptoms

No Different from other fever

Dengue Fever (DF) Syndrome

Dengue Hemorrhage Fever (DHF)

Without Hemorrhage

With Unusual Hemorrhage

Dengue Shock SyndromeNo Shock

PreventionPrevention

Because Dengue fever is spread by a virus, there is no specific medicine or antibiotic to treat it. For a typical Dengue fever, the

treatment is purely concerned with the relief of symptoms.Mind it, there is no vaccine available for the treatment of Dengue

fever currently.

Therefore, prevention is sought only by:Eliminating the breeding places of mosquitoes,Keeping the environment clean, Constant spraying insecticides at open places and Limiting exposure to bites by using mosquito nets, coils etc.It is also advisable to massage exposed body parts with a suitable insect repellent and wear long sleeve shirts and clothing which covers arms and legs.

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Spread the Awareness About Spread the Awareness About Dengue MosquitoesDengue Mosquitoes

Let your family, friends Let your family, friends and neighbors know and neighbors know about the dangers of about the dangers of breeding mosquitoes breeding mosquitoes

around you!!!around you!!!Dengue - The Killer Mosquito 12

TreatmentTreatmentThere is no specific medicine to treat Dengue

infection. If you think you may have Dengue fever, you should use pain relievers with Acetaminophen

and avoid medicines with Aspirin, which could worsen bleeding. You should also take rest, drink

plenty of fluids, and see your doctor regularly. If you start to feel worse in the first 24 hours after your fever goes down, you should rush to a hospital immediately to be checked for complications.

http://www.webmd.com

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Take good care of your Take good care of your health and avoid health and avoid

contract with Dengue contract with Dengue FeverFever. .

Good HealthGood Health! ! Thank Thank you!you!

A presentation byA presentation by

Ahmad Tariq BhattiAhmad Tariq BhattiLahoreLahore

Dengue - The Killer Mosquito 14