Bacterial Diseases and Preventing Disease

• Salmonella


  A type of bacteria that causes food poisoning
• Salmonella toxin


  Causes the symptoms of Salmonella food poisoning
• Getting Salmonella food poisoning

  1. Eating food contaminated with Salmonella bacteria

  2. Eating chicken that caught the disease

  3. Eating food prepared in unhygienic conditions
• In the UK, most poultry is given a vaccination against Salmonella to control the spread of the disease
• Gonorrhoea


  A sexually transmitted disease (STD)
• How gonorrhoea is transmitted

  Through sexual contact, e.g. having unprotected sex
• Gonorrhoea was originally treated with penicillin, but strains of the bacteria have become resistant to it
• Preventing the spread of gonorrhoea

  1. Treating infected people with antibiotics

  2. Using barrier methods of contraception like condoms
• Ways to reduce or prevent the spread of disease

  • Being hygienic (e.g. washing hands)
  • Destroying disease vectors (e.g. insects)
  • Isolating infected individuals
  • Vaccination