(GP) (Infection)

Overview

• Highly contagious disease caused by the influenza viruses A, B, and C (very rare)
• Most infections occur during winter season
• Influenza Virus A and B → RNA virus of the family orthomyxoviruses spread via person-to-person transmission directly via respiratory droplets or indirectly through contact with contaminated surfaces
  • Influenza A → classified into various subtypes based on glycoproteins of viral envolope - haemaglutinin (H) and neuraminidase (N)
• Hygeine precautions and vaccination help prevent spread of the influenza viruses
• Characterised by upper and lower respiratory tract symptoms

Making Diagnosis

Clinical Features:

• Fever
• Acute Bronchitis → cough
• Headache
• Arthralgia
• Myalgia
• Fatigue & Malaise