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(Pronounced as Dhen Gey). Dengue Fever What you need to know…. Dr Gautam. Alternative Names. Onyong- Nyang Fever West Nile Fever Break Bone Fever Dengue like Disease. Dengue Fever is an illness caused by infection with a virus transmitted by the Aedes Aegypti mosquito.

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pronounced as dhen gey

(Pronounced as Dhen Gey)

Dengue Fever

What you need to know…

DrGautam

alternative names
Alternative Names
  • Onyong- Nyang Fever
  • West Nile Fever
  • Break Bone Fever
  • Dengue like Disease

Dengue Fever is an illness caused by infection with a virus transmitted by the Aedes Aegypti mosquito.

inter play of three factors
Inter play of three factors

WE

Interaction

The Virus

The Mosquito

slide4

One distinct physical feature – black and white stripes on its body and legs.

  • Bites during the day.
  • Lays its eggs in clean, stagnant water.
slide5

Do you know…

  • Only the femaleAedes mosquito feeds on blood. This is because they need the protein found in blood to produce eggs. Male mosquitoes feed only on plant nectar.
  • On average, a femaleAedes mosquito can lay about 300 eggs during her life span of 14 to 21 days.
slide6

Larvae

Eggs

Pupae

4-5 days

Life cycle of the Aedes Mosquito

2-3 days

Stagnant water

slide7

How Do Aedes Mosquitoes Transmit Disease...

Mosquito bites and sucks blood containing the virus from an infected person.

And passes the virus to healthy people when it bites them.

Virus is carried in its body.

watch out this mosquito
Watch out ! This Mosquito
  • Day biting – normally catches us unaware
  • Loves / lives in fresh water in homes
  • Lays eggs preferentially in jars, discarded containers, coconut shells, old tires etc.
  • Year round breeding
  • Tropical regions like our mother India are its favorite zones.
  • It is an urban mosquito
slide10

Do you know…

  • Dengue Fever (DF) and Dengue Haemorrhagic Fever (DHF) are the most common mosquito-borne viral diseases in the world.
  • It can be fatal.
slide11

Prevalence of Dengue…

Highly prevalent now

Prevalent from centuries

dengue presentations
Dengue Presentations
  • Dengue viruses – 4 flavours cause it
  • It is transmitted by a mosquito- the Aedes aegypti
  • It is generally an animal virus
  • Man is accidentally infected
  • Other vertebrates are the reservoirs
  • Like any other viral fever- not clear cut
  • Dengue Fever with Muscle pains

this is classical presentation in 90% cases

  • Dengue Fever with bleeding in 7%
  • Dengue – the dangerous form in 3%
  • Bleeding into skin
  • From Gums
  • From Nose
  • Into our food passages
  • Blood in urine
what do we experience
What do we experience ?
  • 2–7 days after the mosquito had its meal on us we may develop
  • Sudden onset of fever, chills, headache
  • Back pain with severe muscle and joint pains
  • Pain behind the eyes and on moving the eyes
  • Nick name - Break bone fever- pains so severe
  • Red patches or spots on the skin
  • Mild nose bleeds

This is the ordinary classical

Non dangerous form!

what are the tests needed
What are the tests needed?
  • Routine blood test
  • Tests to check the clotting process
  • Special tests to identify the Dengue or its foot marks in our blood
  • Urine to check protein leak
treatment of dengue
Treatment of Dengue
  • Supportive measures – Mosquito screen
  • Avoid Aspirin and pain killers
  • Steroids should not be used
  • Plenty of water and salt are required
  • Children below 12 require careful watch

for dangerous form

  • No antibiotics are of proven value
can we protect ourselves
Can we protect ourselves?

There is no vaccine available as yet

Prevent breeding of Mosquitoes-- control

Prevent Mosquito bites

Spread the dengue prevention message to others…Let your family, friends and neighbours know about the dangersof breeding Mosquitoes!!

mosquito control
Mosquito Control

How to prevent mosquito spread?

  • Do not allow empty vessels, coconut shells, plastic containers, flower pots, tires etc to collect rain water in them
  • Frequently (once in 2-3 days) empty all water storage containers
  • Cover your over tanks to prevent mosquitoes breeding in fresh water
slide19

Remove water from flowerpot plates on alternate days.

Change water in vases on alternate days.

slide20

Do not litter. Rubbish such as cups and bottles can collect rain water and breed mosquitoes.

Turn over all pails and water storage containers.

slide21

This is what you

can do to help…

Remove ALL sources of stagnant water.

Deny the Aedes mosquito of any chance to breed.

how to prevent mosquito bites
How to prevent mosquito bites?
  • Screen your homes with mosquito screens like Netlon -
  • Wear full clothing – long sleeves
  • Apply mosquito repellents like Odomos
  • Keep Dengue fever patient under mosquito net
  • True community participation is key

Using sprays indoors and at possible breeding places

reach yours sincerely @
Reach Yours Sincerely @
  • Your doctor
  • Bhel general hospital
  • Ramchandrapuram
  • Hyderabad
  • E-mail: medical@bhelhyd.co.in