1. (Pronounced as Dhen Gey)
Dengue Fever
What you need to know…
(Pronounced as Dhen Gey)
Dr Gautam

2. 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.

3. Inter play of three factorsWE
Interaction
The Virus
The Mosquito

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

5. Do you know…
Only the female Aedes 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 female Aedes mosquito can lay about 300 eggs during her life span of 14 to 21 days.

6. Life cycle of the Aedes Mosquito
Pupae
Larvae
Eggs
4-5 days
2-3 days
Stagnant water

7. 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.

9. 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

10. 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.

11. Prevalence of Dengue…
Prevalent from centuries
Highly prevalent now

12. Dengue Presentations Bleeding into skin From Gums From Nose
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

13. This is the ordinary classical
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!

14. Signs & Symptoms

15. 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

16. 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

17. 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 dangers of breeding Mosquitoes!!

18. 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

19. Remove water from flowerpot plates on alternate days.
Change water in vases on alternate days.

20. Turn over all pails and water storage containers.
Do not litter. Rubbish such as cups and bottles can collect rain water and breed mosquitoes.
Turn over all pails and water storage containers.

21. This is what you can do to help…
Remove ALL sources of stagnant water.
Deny the Aedes mosquito of any chance to breed.

22. 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

23. Reach Yours Sincerely @
Your doctor
Bhel general hospital
Ramchandrapuram
Hyderabad