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A pandemic (/ p æ n ˈ d ɛ m ɪ k / pan-DEM-ik) is an epidemic of an infectious disease that has a sudden increase in cases and spreads across a large region, for instance multiple continents or worldwide, affecting a substantial number of individuals.
An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of hosts in a given population within a short period of time. For example, in meningococcal infections , an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic.
Peanut butter being spread on white bread . This is a list of spreads. A spread is a food that is literally spread, generally with a knife, onto food items such as bread or crackers. Spreads are added to food to enhance the flavour or texture of the food, which may be considered bland without it.
Moreover, for a given noise power spectral density (PSD), spread-spectrum systems require the same amount of energy per bit before spreading as narrowband systems and therefore the same amount of power if the bitrate before spreading is the same, but since the signal power is spread over a large bandwidth, the signal PSD is much lower — often ...
Cross-species transmission is the most significant cause of disease emergence in humans and other species. [citation needed] Wildlife zoonotic diseases of microbial origin are also the most common group of human emerging diseases, and CST between wildlife and livestock has appreciable economic impacts in agriculture by reducing livestock productivity and imposing export restrictions. [2]
The spread of diseases across wide geographic scales has increased through history. Early diseases that spread from Asia to Europe were bubonic plague, influenza of various types, and similar infectious diseases. In the current era of globalization, the world is more interdependent than at any other time.
The term "diaspora" is derived from the Ancient Greek verb διασπείρω (diaspeirō), "I scatter", "I spread about" which in turn is composed of διά (dia), "between, through, across" and the verb σπείρω (speirō), "I sow, I scatter". The term διασπορά (diaspora) hence meant "scattering". [27]
Spread betting is any of various types of wagering on the outcome of an event where the pay-off is based on the accuracy of the wager, rather than a simple "win or lose" outcome, such as fixed-odds (or money-line) betting or parimutuel betting. A point spread is a