Diphtheria, the severe disease of childhood, is now rare, mainly due to widespread immunisation. But we should not be complacent and neglect to immunise our children as isolated outbreaks still occur, especially in unimmunised children, and the germ is still common, even if the infection is rare. Some people, especially adults, while not actually developing [...]

Without effective treatment, the primary cancer continues to grow at a fairly steady rate, pressing on, and eventually growing through, nearby structures. Sooner or later, nearly all untreated or unsuccessfully treated cancers give rise to secondary growths. For each particular type of cancer, there is a characteristic or average pattern. For example, a cancer starting [...]