Class 8 Biology Microorganisms: Friend and Foe Common Cold

Diseases in Humans: Common Cold

  • Pathogen
    • Viruses (e.g: Rhino virus)

               

  • Pathogen’s entry
    • Through contaminated air/ objects
    • Inhalation of droplets released by infected person
    • Nose & respiratory passage gets infected
    • Lungs remain unaffected

 

 

  • Symptoms
    • Sore throat
    • Cough
    • Headache
    • Nasal congestion
    • Nasal discharge
    • Hoarseness

 

                                                

  • Treatment
    • Treated with medication like pain killers, cough syrups or nasal sprays
    • Antibiotics do not help a viral infection

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