dengue fever lecture

8/10/2019 Dengue Fever Lecture

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Dengue is important to us because it is a serious illness; it ison the increase in Pakistan

The most deadly form of dengue fever, Dengue HemorrhagicFever has been found to be in the territory

Dengue Hemorrhagic Fever can cause DEATH


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Dengue is the most rapidly spreading mosquito-borne viraldisease in the world

In the last 50 years, incidence has increased 30-fold

An estimated 50 million dengue infections occur annually

Approximately 2.5 billion people live in dengue endemic

countries

Nearly half million develop DHS/ DSS & 25,000 die annually


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In Pakistan, the first confirmed outbreak of DHF occurred in1994

A DEN-3 epidemic with DHF was first reported in 2005

In 2005--2006 outbreaks of suspected dengue were alsorecorded in Saudi Arabia, Sudan and Yemen

Expansion of dengue infections with increasing frequencyand severity has been reported from large cities in Pakistanas far north as the KPK Province in 2008.

Dengue is now a reportable disease in Pakistan


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Dengue Fever is an illness that results from contracting thedengue virus from the bite of an infected Aedes aegyptimosquitothat is carrying the virus

There are four types of dengue viruses

When a person has had one type of dengue virus infectiononce in his/her life, and later gets infected with another typeof dengue virus, that person is in danger of getting DengueHemorrhagic Fever.This fever can kill


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Abrupt onset of high fever Severe frontal headache Pain behind the eyes which worsens with eye movement

Muscle and joint pains Loss of sense of taste and appetite Measles-like rash over chest and upper limbs Nausea and vomiting


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Symptoms similar to dengue fever plus: Frequent vomiting with or without blood Internal bleeding which can lead to shock Difficulty in breathing

This fever can be difficult to treat, and in some cases even withthe best medical care people die

Do not wait, see a doctor immediately. It is crucial to quicklytreat anyone with these complications


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One distinct physical feature

black and white stripes on its bodyand legs.

Bites during the day.

Lays its eggs in clean, stagnantwater. Close-up of an Aedes

mosquito


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Only the femaleAedesmosquito feeds on

blood. This is because they need the proteinfound in blood to produce eggs. Malemosquitoes feed only on plant nectar.

On average, a femaleAedesmosquito can

lay about 300 eggs during her life span of 14to 21 days.

Do you know


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1-2 days

Stagnant water

Pupae

4-5 days

Life cycle of the Aedes Mosquito

Larvae Eggs

2-3 days


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How Do Aedes Mosquitoes Transmit Diseases...

Mosquito bites and sucks bloodcontaining the virus from an

infected person

Virus is carried in itsbody

And passes the virus tohealthy people when it

bites them


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Dengue is spread when the female Aedes aegypti mosquitobites an infected person, it sucks up the blood with the virusand passes this virus onto the next person she bites for more

blood

In this way the mosquito becomes a carrier of the denguevirus. We call these carriers of disease and illness vectors


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There is no vaccine to protect us from Dengue

We must, therefore, protect ourselves by avoiding the

infection. The only way of becoming infected is through thebite of the mosquito that is carrying the virus


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The Aedes aegypti mosquitothat carries the dengue virus,likes to lay eggs in water near or in our homes. It enjoys livingnear to humans, its convenient blood supply

Anything that holds water can be a mosquito-breeding site.Therefore, the best way of protecting your family andcommunity from dengue fever is to destroy all the places inwhich the mosquito can lay eggs, breed more youngmosquitoes, increase their number, and so spread dengue tomore persons when they bite them for their blood. Here aresome actions you can take to rid your home and communityof mosquito breeding sites


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Prevent Aedes from Breeding!

Remove ALL sources of stagnant

water

Deny the Aedesmosquito of any chance to

breed


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Screen Outlets

Screen Down spouts from the roof

Seal points of entry of pipe into cistern

Place small fish in your cisterns for these eat the mosquitolarvae (wrigglers)


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Ensure the cover fits tightly; this prevents adult mosquitoesfrom entering and laying eggs

Repair broken manhole covers

Plug overflow holes located under the cover of Black plastictanks


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Change the water-pots holding your plants or cut flowers atleast once a week

Drain flower pots flowerpots should have holes fordrainage

Plants should ideally be grown in a mixture of sand andwater or...

Use damp soil instead of water for growing plants

Keep the saucers of flower pots dry


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Throw out the water in your draining pan under yourrefrigerator at least once per week

Clean and scrub your dish drainers at least once per week

Toilet flush tanks should be inspected and cleaned at leastonce per week and always kept tightly covered

Keep surroundings clean and get rid of containers which mayhold even the tiniest amount of water e.g. tins, old tires, oldpans, bottles, etc


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Community members can work together to:

Keep the environment clean e.g. de-bush empty lots

Keep gullies and drains clean

Monitor and destroy any other mosquito breeding places


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Punch holes in tins before disposal

Get rid of derelict vehicles

Ornamental pools and fountains should be regularly drainedand scrubbed, chlorinated, and/or stocked with fish

Swimming pools should be kept clean, filtered, and in goodcondition


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People can further protect themselves from mosquito bites byusing:

Mosquito coils Electric vapor mats Mosquito repellent sprayed on skin Screen windows and doors Sleep under mosquito proof bed nets Close windows late evenings and early mornings Wear protective clothing, such as long sleeve shirts, long

pants, and thick (bobby) socks during day time. It is alsoadvisable to avoid wearing dark colours


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Every government has the responsibility for keeping public

places free of garbage and junk that can becomemosquito-breeding places

But, no Department of Health, no government, can comeinto our homes and workplaces and stop mosquitoes frombiting us. Only we can do this. The government cannot stopthe mosquito from breeding in our flowerpots or debris leftstrewn in our yards. Only we can do this


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If we are serious and determined, we can ensure that

mosquitoes have no place to breed more mosquitoes to biteus and give us dengue fever

So Search and Destroy mosquito breeding places at homeand work


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dengue fever lecture

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