Existing definitions of microbial pathogenicity and virulence are inadequate to explain many infectious diseases and do not incorporate the contribution of the host to these processes. A new ...

The pathogenesis of lung cancer is initiated the either by the activation of oncogenes or the inactivation of tumor suppressor genes, which leads to uncontrolled replication and growth of the cells in ...

FROM the impact of epidemics on the rise and fall of empires to the part played by the Black Death in hastening the transition from a feudal, religious society to a capitalist, secular one, humankind ...