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Outbreak


Virus outbreaks occur when a virus bypasses infection control measures and a relatively high number of infections are observed where no cases or sporadic cases occurred in the past. The study of pathogenic viral outbreaks is a branch of epidemiology and usually refers to virus outbreaks that make people, animals, or plants sick. As with bacterial outbreaks, viral outbreaks are classified as sporadic (occasional occurrence), endemic (regular cases often occurring in a region), epidemic (an unusually high number of cases in a region), or pandemic (a global epidemic).

Major human epidemic viruses include influenza, Human Immunodeficiancy Virus (HIV), measles, and rubella. Smallpox has been eradicated as a major epidemic virus, however emerging viruses and engineered viruses pose a significant challenge for the future. HIV is no longer considered an emerging virus as it was discovered over 20 years ago, and it has grown to become a major epidemic. Other emerging viruses include Severe Acute Respiratory Syndrome (SARS), henipaviruses and Ebola which have been contained through aggressive contact tracing and isolation of patients and suspected carriers of the disease.

Hoof and mouth disease (UK foot and mouth disease) is a major animal epidemic virus affecting the agricultural industry of any country with an outbreak. It affects cows, pigs, sheep, goats, deer and other cloven hoofed animals.

See also:

epidemiology, bacterium, virus


Outbreak (film) was the name of a film.


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(Date:7/11/2014)... from the Max Planck Institute for Medical Research in ... understanding photosynthesis, the process by which the Earth first ... and which is therefore crucial for all higher forms ... the first direct visualization of a crucial event in ... specific protein complex, photosystem II, splits water into hydrogen ...
(Date:7/11/2014)... of kidney injury related to the use of hydroxyethyl ... HES molecules, according to a report in Anesthesia ... Research Society (IARS). , The "total mass of HES ... human renal proximal tubule cells (PTCs), concludes the laboratory ... Hospital Wrzburg, Austria. Other factorssuch as differences in ...
(Date:7/11/2014)... is evidence that under the normal circumstances, ... development, maintain neuronal environment, and exhibit therapeutic ... neurodegenerative disease. Previous studies have found that ... after chemical induction have reduced viability, which ... Prof. Xiaodong Yuan, Kailuan General Hospital, Hebei ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... new study has revealed that mother birds can provide ... sired with their non-social partner (known as extra-pair offspring). ... birds commonly mate with males other than their social ... interloper,s ,extra pair, offspring often outperform their half brothers ...
... Technology for the first time have shown the earliest ... formation of bones, teeth and sea shells. ... capture a three-dimensional image of the nanoparticles that form ... greater understanding of the formation of bones, teeth and ...
... in US women of childbearing age, and is common in ... in the vagina is disrupted and replaced by an overgrowth ... increased risk for a variety of complications, such as preterm ... be prevented. Vitamin D may play a role in BV ...
Cached Biology News:Mothers give interloper's offspring a head start in life 2Mothers give interloper's offspring a head start in life 3Focus on the formation of bones, teeth and shells 2Vitamin D insufficiency linked to bacterial vaginosis in pregnant women 2
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