Communicable Diseases

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  • Examples of Communicable Diseases
    • Cholera
      • Pathogen: bacteria, Vibrio Chloerae
      • Symptoms: Diarrhoea
      • How it spreads: via contaminated water sources.
      • How to prevent transmission: Make sure that you have access to clean water supplies
    • Tuberculosis
      • Pathogen: bacteria, Myco-bacterium tuberculosis
      • Symptoms: coughing and lung damage
      • How it spreads: Through the air when an infected individual is coughing.
      • How to prevent it: Infected people should avoid crowded public spaces, practise good hygiene and sleep alone. Their homes should be well-ventilated.
    • Malaria
      • Pathogens: a protist
      • Symptoms: Damage to red blood cells and in severe cases, liver
      • How it spreads: Mosquitos act as vectors - they pass on the protist to humans but don't get the disease themselves.
      • How to prevent it: use mosquito nets and insect repellent to prevent mosquitos biting you
    • Stomach Ulcers
      • Pathogen: bacterium, Helicobacter Pylori
      • Symptoms: stomach pains, nausea and vomiting
      • How it spreads: Oral transmission like swallowing contaminated food.
      • How to prevent this: Having clean water supplies and good hygienic living conditions.
    • Ebola
      • Pathogen: Ebola virus
      • Symptoms: Haemorrhagic fever (a fever with bleeding)
      • How is it spread: by bodily fluids
      • How to prevent it: By isolating infected people and sterilising any areas where the virus may be present
    • Chalara ash dieback
      • Pathogen: a fungus that infects ash trees
      • Symptoms: Leaf loss and tree lesions (wounds)
      • How to prevent it: Removing young infected ash trees and replanting with different species or restricting the import or movement of ash trees.
      • How is it spread: Carried through air by wind or when infected ash trees are moved between areas.


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