sporadic


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sporadic

 [spŏ-rad´ik]
occurring singly; widely scattered; not epidemic or endemic.

spo·rad·ic

(spō-rad'ik),
1. Denoting a temporal pattern of disease occurrence in an animal or human population in which the disease occurs only rarely and without regularity.
2. In the genetic context, sporadic denotes a singleton or sport. Several quite different and disparate phenomena are covered by this term, including a new mutation; occult nonpaternity; the chance outcome for a recessive trait in two carrier parents with a small family; extreme variability in the expression of a gene; an environmental phenocopy; a multilocal genocopy, etc. No useful properties can be predicated of all members of this class; and the term is notionally useless.
3. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]

sporadic

(spə-răd′ĭk, spô-)
adj.
1. Occurring at irregular intervals or in isolated or scattered places; having no pattern or order: his sporadic attendance in class; rebels who put up sporadic resistance.
2. Medicine Not epidemic, endemic, or inherited. Used of a disease or condition: Most cancers are sporadic, caused by genetic mutations that are not heritable.

spo·rad′i·cal·ly adv.
spo·rad′i·cal·ness n.

sporadic

Epidemiology adjective Referring to a noninherited condition that arises rarely in a particular population Genetics adjective Referring to an event attributable to changes in somatic DNA, which may be inherited, but unpredictably

spo·rad·ic

(spōr-ad'ik)
1. Denoting a temporal pattern of disease occurrence in an animal or human population in which the disease occurs only rarely and without regularity.
See also: endemic, epidemic, epizootic
2. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]

sporadic

having a distribution confined to limited and dispersed localities; scattered.

Sporadic

Occurring at random or by chance, and not as a result of a genetically determined, or inherited, trait.

spo·rad·ic

(spōr-ad'ik)
1. Denoting temporal pattern of disease occurrence in which the disease occurs only rarely and without regularity.
2. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]
References in periodicals archive ?
Isolation of influenza A(H3N2) viruses from sporadic cases was reported in the United Kingdom in June.
Orphazyme A/S (CPH:ORPHA.CO), a biopharmaceutical company dedicated to developing treatments for patients living with rare diseases, announced on Tuesday full enrolment of its phase II/III trial of arimoclomol for the treatment of sporadic Inclusion Body Myositis (sIBM).
"Overall air quality over Delhi is in satisfactory category after a sporadic but consistent drizzle.
There is a chance for sporadic light rain on some districts.
Oman will be affected by a low pressure system for three days, beginning Monday, resulting in sporadic rains in northern parts of Oman, the Directorate General of Meteorology stated on Sunday.
According to eyewitnesses, Israeli boats fired sporadic and sporadic showers of bullets towards fishermen's boats, but no casualties were reported.
Reports received from the area of the incident suggest that sporadic clashes still continue between the two sides.
This study aimed to investigate whether patients from families with ≥3 first-degree relatives affected with NMTC have different characteristics than patients from families with only two affected members, and to compare these patients with those with sporadic disease.
van Waning, M.D., from Erasmus Medical Center in the Netherlands, and colleagues compared clinical features and major adverse cardiac events (MACE) during follow-up among 327 unrelated NCCM patients (adults and children) in three categories: with a genetic mutation (32 percent of patients); probably genetic, familial cardiomyopathy, without a mutation (16 percent); or sporadic, no family history, without a mutation (52 percent).
MANILA, Philippines At least 17 volcanic earthquakes and 10 tremor events were recorded around Mayon Volcano in the past 24 hours, state seismologists said yesterday.The quakes, which was lower from the 338 previously recorded, mostly corresponded to sporadic and weak fountaining events, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
Beginning 7:50 last night, energetic lava effusion with sporadic lava fountaining and lava collapse causing pyroclastic density currents occurred until 11:06 p.m.
In the Introduction of the article titled "A Case of Sporadic Creutzfeldt-Jakob Disease Presenting as Conversion Disorder" [1], the text reading "Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, fatal neurodegenerative disease caused by aggregation of misfolded prion proteins.