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Dengue

🦟🔥Aedes aegypti mosquito🔥


Dengue Fever vs dengue Hemorrhagic fever

graph LR
    A[dengue fever];
    B[dengue bone breaking fever]
    C[Subsquent infection of dengue virus];
    D1[auto-immune reaction];
    D[dengue hemorrhagic fever ];
    A --> B;
    C --> D1;
    D1 --> D;
———————-

Symptoms

virus replicates in lymph nodes and circulation in blood affecting many cells - Fever - malaise - Myalgia - Bone break pain - rash

graph LR 
    A[fever,malaise];
    B[cytokines];
    C[myalgia];
    C1[perivascular mono-nuclear infiltrates in muscles];
    D[Muscula-Skeletal pain];
    E[infection of bone marrow];
    E1[Reduction in hematopoiesis];
    F1[iimmune vascularised to dengue antigen]
    F[rash];
    B -->A;
    C1 --> C;
    E --> D;
    E --> E1;
    F1 --> F;

Categories of dengue fever

  1. Without serious symptoms
    • fever ,nausea,leukopenia,rash Or
    • fever + positive torquing test
  2. with serious symptoms
    • above with abdominal pain/tenderness,hepatomegaly..etc…
  3. severe symptoms
    • Sever plasma leakage Or
    • respiratory distress

Tornequt test

Pattern of disease

  1. Febrile phase
  2. Critical phase(increased vascular permeability,increased hematocrit]
  3. Convalesce phase
graph LR
    A[at end of febrile phase] --> |appearance of warning signs to severe disease | B[critical phase];

Treament

- Indetify the phase of infection and stage of disease progression 
- Intra-venous supportive therapy for shock
- Avoid aspirin/Ibufropin which worsen the hemorrhage
- Mosquito Controll 
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