Causes of disease

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causes of disease
shannon.bates
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shannon.bates
Creado por shannon.bates hace casi 9 años
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Resumen del Recurso

Causes of disease
  1. Infectious diseases
    1. Epidemics
      1. widespread outbreaks of disease
      2. Pandemics
        1. epidemics that spread internationally
        2. Pathogen
          1. Virus
            1. Bacteria
              1. Fungi
            2. Initial infection
              1. Pathogens enter the body
                1. Gas exchange system
                  1. Digestive system
                  2. Natural defences
                    1. Mucous layer covers exchange surfaces
                      1. Enzyme production
                        1. Stomach acid
                        2. Pathogens affect body in 2 ways
                          1. Damaging host tissues
                            1. Producing toxins
                          2. Risk factors of cancer
                            1. Smoking
                              1. Diet
                                1. Obesity
                                  1. Physical activity
                                    1. Sunlight
                                    2. Risk factors of CHD
                                      1. Smoking
                                        1. High blood pressure
                                          1. Blood cholesterol levels
                                            1. Obesity
                                              1. Diet
                                                1. Physical activity
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