| 单词 | epidemic |
| 例句 | epidemic noun 1.•an epidemic of typhoid:outbreak, plague, pandemic, epizootic. 2.•an epidemic of violence in elementary schools:spate, rash, wave, eruption, outbreak, craze | flood, torrent | upsurge, upturn, increase, growth, rise.▶adjective •the craze is now epidemic:rife, rampant, widespread, wide-ranging, extensive, pervasive | global, universal, ubiquitous | endemic, pandemic, epizootic.EASILY CONFUSED WORDS epidemic, endemic, pandemic A disease that quickly and severely affects a large number of people and then subsides is an epidemic:•throughout the Middle Ages, successive epidemics of the plague killed millions. Epidemic is also used as an adjective: •she studied the causes of epidemic cholera. A disease that is continually present in an area and affects a relatively small number of people is endemic:•malaria is endemic in (or •to) •hot, moist climates. A pandemic is a widespread epidemic that may affect entire continents or even the world: •the pandemic of 1918 ushered in a period of frequent epidemics of gradually diminishing severity. Thus, from an epidemiologist's point of view, the Black Death in Europe and AIDS in sub-Saharan Africa are pandemics rather than epidemics.These notes clear up confusion between similar-looking pairs. |
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