3-Measles and HIV

• Viruses


  Pathogens that cannot be killed by antibiotics
• Viruses are microorganisms that cause infectious disease
• Measles


  • Highly infectious disease
  • First symptom is fever
  • After 3 days, develops red skin rash
  • Virus spread through coughing/sneezing droplets
  • Can cause complications and be fatal
• HIV


  • First symptom is flu-like illness
  • Virus attacks immune system cells
  • Immune system becomes severely damaged
  • Leads to other infections and cancers (late stage HIV/AIDS)
  • Can be treated with antiretroviral drugs but not cured
• Antiretroviral drugs


  Stop HIV virus from multiplying, prevent development of AIDS
• HIV is transmitted through exchange of bodily fluids, including unprotected sex and sharing infected needles
• You'll find plenty of questions on measles and HIV in the revision workbook