"eHealth is the single-most important revolution in healthcare since the advent of modern medicine, vaccines, or even public health measures like sanitation and clean water".

The term e-Health (E-Health, eHealth ...) has been in use since the year 2000. e-health encompasses much of medical informatics but tends to prioritise the delivery of clinical information, care and services rather than the functions of technologies. No single consensus, all-encompassing definition of eHealth exists - the term tends to be defined in terms of a series of characteristics specified at varying levels of detail and generality (see next section). The term is not included in the MeSH taxonomy but most of the topics typically classified as being part of e-health are encompassed within the medical informatics MeSH tree.....Read More

Source: Openclinical.org