Resistant Bacteria

• What is MRSA

  • A Bacteria resistant strain
• Resistant bacteria

  • Mutations of bacterial pathogens produce new strains
  • Some strains are resistant and aren't killed
  • Survive + reproduce quickly so population of strain rises
  • Strain will spread as people aren't immune to it and there is no effective treatment.
• How to reduce development of antibiotic resistant strains

  1. Doctors should not prescribe antibiotics inappropriately (for viral infections or non-serious infections)

  2. Taking antibiotics for the full length told/given so all bacteria are killed

  3. Agricultural use of antibiotics should be restricted

  4. New development of antibiotics is costly and slow so hard to keep up with new strains
• How widespread use of antibiotics in farming is a threat to human life (4)

  • Antibiotic passed into environment in animal faeces/urine/sewage
  • Bacteria in water/land become antibiotic resistant
  • Some bacteria are human pathogens
  • Leading to human diseases which cannot be cured as they are antibiotic resistant