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THE VIRAL DISEASES
- Pneumotropic Viral Diseases
- Dermatropic Viral Diseases
- Viscerotropic Viral Diseases
- Neurotropic Viral Diseases
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Pneumotropic Viral Diseases
- Influenza
- Adenovirus infections
- Respiratory Syncytial disease
- Rhinovirus infections
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Influenza
- Acute, contagious disease of the upper respiratorytract transmitted by droplet inhalation
- Characterized by ability to modulate surface antigens
- Acute onset with sudden chills, fatigue, headache, then 104 fever
- Secondary complication often
- Haemophilus influenzae
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Adenovirus infections
- Over30 types of adenoviruses which cause the common cold
- One strain may cause viral meningitis (aka asceptic meningitis)
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Respiratory Syncytial disease
- Most common lower respiratory tract disease in children below 2 yrs of age resulting in viral pneumonia
- When virus infects tissue cells, they tend to fuse forming“giant” cells or syncytia
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Rhinovirus infections
- Over100 rhinoviruses
- Major cause of the common cold
- Causes croup in children
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