9.4. Travel Related Infections - Dengue Flashcards

1
Q

What is the significance of Dengue?

A

It is the commonest human arbovirus infection - killing 25,000 per year

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2
Q

Where are the countries at risk of Dengue found?

A

In the central belt of the world:

  1. South America
  2. Africa
  3. South Asia
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3
Q

How is Dengue transmitted?

A

Via Mosquitoes

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4
Q

What is the Clinical Presentation of Dengue?

A
  1. Sudden Fever
  2. Severe Headahces with Retro-Orbital Pain
  3. Sever Myalgia and Arthalgia
  4. Macular / Malculopapular Rash
  5. Haemorrhagic Signs (Petechiae, Purpura, Positive Tourniquet Test)
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5
Q

How is Dengue Diagnosed?

A
Clinically:
1. Thrombocytopenia
2. Leucopenia
3. Elevated Transaminases
4. Positive Tourniquet Test
Laboratory:
1. PCR
2. Serology
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6
Q

How is Dengue managed?

A

No Specific Therapeutic Agents - only complications managed, and prevention methods

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7
Q

What are the complications of Dengue?

A
  1. Dengue Haemorrhagic Fever

2. Dengue Shock Syndrome

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8
Q

How are the complications of Dengue treated?

A
  1. I.V. fluids
  2. Fresh Frozen Plasma
  3. Platelets
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9
Q

What are the prevention methods against getting Dengue?

A
  1. Avoid Bites (Bed Nets, Avoid Still Water)

2. New Vaccine (Dengavaxia) - limited use

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