Bacterial diseases and Preventing disease

• What is salmonella?

  A type of bacteria that causes food poisoning.
• What are the symptoms of salmonella?

  Fever, stomach cramps, vomiting and diarrhoea.
• How are the symptoms caused?

  By the toxins that the bacteria produce.
• How can you get salmonella?


  By eating food that’s been contaminated with Salmonella bacteria e.g eating chicken that caught disease, or eating food that has been contaminated by being prepared in unhygienic conditions.
• In the UK, most poultry is given a vaccination against salmonella. This is to control the spread of the disease.
• What is gonorrhoea?

  A sexually transmitted disease. It’s caused by bacteria.
• How are STD’s passed on?

  Sexual contact e.g having unprotected sex.
• What are the symptoms of gonorrhoea?

  Pain when urinating, a thick yellow or green discharge from the vagina or the penis.
• How was gonorrhoea originally treated?

  With an antibiotic called penicillin.
• Why has the use of penicillin become trickier?

  Because strains of the bacteria have become resistant to it.
• How can you prevent the spread of gonorrhoea?

  People can be treated with the antibiotics and should use barrier methods of contraception such as condoms.
• How can vaccination reduce the spread of disease?

  They will be less likely to develop the infection and then pass it on.
• How does isolating infected individual prevent disease?

  If you isolate someone who has a communicable disease, it prevents them from passing it on to anyone else.
• How does destroying vectors help?

  By getting rid of the organisms that spread disease - prevent the disease from being passed on. Vectors that are insects can be killed using insecticides or by destroying their habitat so won’t breed.
• What are the four ways we can reduce or prevent the spread of disease?

  Being hygienic, destroying vectors, Isolating infected individuals, vaccination.