(39) GCSE Biology Revision "Salmonella and Gonorrhoea"

Overview of Bacterial Diseases

Key Concepts

  • Communicable diseases: passed from person to person via pathogens.

  • Pathogen: a microorganism that causes infectious disease.

  • Bacteria vs. Viruses: Bacteria can be killed by antibiotics.

Salmonella Food Poisoning

Causes

  • Caused by Salmonella bacteria.

  • Spread through ingesting infected food, usually prepared in unhygienic conditions.

    • Example: Using the same chopping board for raw chicken and other foods without cleaning.

Symptoms

  • Fever

  • Abdominal cramps

  • Vomiting

  • Diarrhea

Prevention

  • Vaccination: All chicken in the UK is vaccinated against Salmonella to control its spread.

Gonorrhea

Causes

  • Gonorrhea: a sexually transmitted disease (STD).

  • Transmitted through sexual intercourse.

Symptoms

  • Thick yellow or green discharge from the penis or vagina.

  • Pain during urination.

Treatment

  • Historically treatable with penicillin, but antibiotic-resistant strains are now common.

  • Current treatment involves different antibiotics.

Prevention

  • Use of condoms during sexual intercourse to prevent transmission.

  • Testing for gonorrhea for individuals with unprotected sex to treat and prevent further spread.

Additional Information

  • Further questions on bacterial diseases can be found in the vision workbook available via linked resource.