Emerging Infectious Diseases
Many organisms live in and on our bodies which are normally harmless or even helpful, but under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person. EIDs are caused by newly identified species or strains that may have evolved from a known infection or spread to a new population. Occupational epidemiology is of great importance in clinical epidemiology and of occupational hygiene since it provides powerful and good information to understand the causes and determinants of work-related ill-health, to help establish what steps should be taken to reduce occupational risks, and to evaluate interventions for the benefits of workers, and of the community in a bigger manner.