and Immunity Diseases can either be single factor (have a single cause) or multifactorial (many causes. Can be classed as communicable or non-communicable Communicable- infectious diseases such as; Malaria, Influenza, Cholera, Tuberculosis, HIV/AIDS Non-communicable include diabetes, arthritis, lung cancer scurvy, emphysema not caused by pathogens and non-infectious. Lifestyles affecting human health- smoking, poor diet, lack of exercise, alcohol, stress A pathogen is a disease causing…
Words 850 - Pages 4