Applied Microbiology

Emerging Diseases

Emerging infectious diseases are infections that have recently appeared within a population or those whose incidence or geographic range. These infections account for at least 12% of all human pathogens which will have evolved from a known infection (e.g. influenza) or spread to a new population (e.g. West Nile fever) or to a neighborhood undergoing ecologic transformation (e.g. Lyme disease), They also include infectious diseases that have affected a given area in the past, declined with passage of time or were controlled, but again reappeared in increasing numbers. Sometimes, an old disease reappears during a new clinical form which will often be severe or fatal.

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