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Influenza

Respiratory Infection

Overview

Influenza is a contagious viral infection causing fever, body aches, and respiratory symptoms.

Symptoms

  • High fever
  • Myalgia
  • Headache
  • Dry cough

Diagnosis

  • Rapid antigen test
  • PCR
  • Clinical during season

Treatments

  • Oseltamivir
  • Zanamivir
  • Supportive care
  • Annual vaccine

Risk Factors

⚠️Age <5 or >65
⚠️Pregnancy
⚠️Chronic illness
⚠️Immunosuppression

Key Facts

  • ℹ️500,000 deaths/year
  • ℹ️Vaccine updated annually

ICD-10: J10-J11 | Prevalence: yaygın (mevsimsel)

Last updated: 11/9/2025