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An Ebstein-Barr virus gene which must be activated for EBV to replicate, thus acting as a switch between latency and replication. The gene is termed ZEBRA as it is localised on the EBV Bam HI Z fragment that corresponds to the EBV Replication Activator; the protein product of ZEBRA is a transcriptional transactivator

(2) Zebra

A popular ‘short form’ of the aphorism often quoted to medical students during clinical rotations—‘when you hear hoofbeats, don’t think of zebras.’ This variation of ‘Sutton’s law’ is designed to teach students a logical approach to a diagnosis, since common things occur commonly and when one hears hoofbeats, one should first think of horses and exclude them in the differential diagnosis before thinking of the unusual causes—the zebras—of a particular clinical finding.


Medtalk A popular 'short form' of the aphorism often quoted to medical students during clinical rotations–'when you hear hoofbeats, don't think of zebras'. See Sutton's law. Cf 'Red herring. '.


ass-like animals with a distinctive black and white striped coat, large ears, tufted tail and stiff mane. Called also Equus burchelli (common zebra), E. zebra (mountain zebra), E. grevyi (Grevy's zebra) and some recognized subspecies.

zebra diagnosis
arriving at an unlikely diagnosis instead of a more common one.
zebra marks
faint striping in coats of horses, usually on the legs, also the neck and withers.
References in periodicals archive ?
Since many predators favor wildebeest, whenever zebras notice calm wildebeest, staying close to them may actually increase their own chance of survival.
This stirred the lineup of watering zebras, leaving a mature mare wide open with nothing behind her.
Later, Don admitted, "I had no idea how tough zebras were to hunt.
AFTER ARRIVING IN South Africa for our second African hunt, Jeff and I simply couldn't sleep because our zebra expectations were running so high.
Only the plains zebra (also called the common zebra or Burchell's zebra) are plentiful in numbers.
Zebra also earned runner-up in Postscapes' acquisition of the year category for its October 2014 acquisition of Motorola Solutions' Enterprise business.
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