Health

WHO sounds alarm on 'harmful' e-cigarettes

Electronic cigarettes and similar devices are dangerous to health and must be regulated to curb the tobacco industry's "criminal" tactics to get young people hooked on nicotine, the World Health Organization warned Tuesday.

Epidemic

In epidemiology, an epidemic (from Greek epi- upon + demos people) occurs when new cases of a certain disease, in a given human population, and during a given period, substantially exceed what is "expected," based on recent experience (the number of new cases in the population during a specified period of time is called the "incidence rate"). (An epizootic is the analogous circumstance within an animal population.) In recent usages, the disease is not required to be communicable; examples include cancer or heart disease.

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