COMMUNICABLE DISEASES EXAM QS

• What type of drug can a doctor prescribe to kill bacteria?


  Antibiotics
• Why can antibiotics NOT be used against viruses?


  Antibiotics only kill bacteria and cannot kill viruses
• Suggest a way that farmers can use to prevent the spread of salmonella?


  Give chickens antibiotics
• How can vaccine reduce the spread of infection?


  People are protected against infection and it can prevent people from spreading it
• A person with AIDS may take longer than a healthy person to recover from a Salmonella infection. Explain why?

  This is because their immune system doesn't function properly which means the white blood cells cannot kill Salmonella as effectively