Different types of disease may interact ... Other risk factors are linked but not proven. Some diseases, their effects and their risk factors are shown in the table below.

Different types of disease may interact ... Other risk factors are linked but not proven. Some diseases, their effects and their risk factors are shown in the table below.

Disease can arise from pathogens that secrete toxins, from dysregulation of the immune system or simply from aging. Far more commonly, pathogenesis occurs as a consequence of complex interactions ...

White blood cells circulate in the blood and lymphatic vessels, looking for pathogens. When they find one, they begin to multiply and send signals to other cell types to do the same. The lymphatic ...