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Avian influenza: Past, present, future

Due to the possibility that bird flu viruses could mutate and gain the ability to spread easily between people, avian influenza poses a significant pandemic threat to birds and humans alike. The U.S. Centers for Disease Control ...

Stem cells reveal underpinnings of rare immune disease

A new stem cell study by KAUST researchers helps to explain a rare genetic disease called Wiskott-Aldrich syndrome (WAS), yielding molecular clues that could lead to new treatments for a devastating immune deficiency disorder. ...

Catabolic processes in cells: Controlling the danger within

Trillions of cells in our body work non-stop to keep us alive. This generates waste that is decomposed in specialized cellular organs. But what happens if the cellular trash cans don't work? Researchers assume that this is ...

How the body senses an essential amino acid

A new paper from Whitehead Institute researchers reveals how mice sense an essential amino acid called leucine, which many people get from eating fish, eggs, or nuts. Down the line, the work could inform research into creating ...

Making CRISPR hype more of a reality

This year, we celebrate 10 years of genome editing with CRISPR. The system is often referred to as molecular scissors, and this designation is quite accurate for its first applications. These short 10 years were marked by ...

Shedding new light on coral's Black Band Disease

UNC-Chapel Hill biologists examine the links between microbial mats and a type of coral disease that has become an urgent conservation concern, and they suggest mitigation strategies to help reduce its spread. Coral reefs ...

Disease

A disease or medical problem is an abnormal condition of an organism that impairs bodily functions, associated with specific symptoms and signs. It may be caused by external factors, such as invading organisms, or it may be caused by internal dysfunctions, such as autoimmune diseases.

In human beings, "disease" is often used more broadly to refer to any condition that causes extreme pain, dysfunction, distress, social problems, and/or death to the person afflicted, or similar problems for those in contact with the person. In this broader sense, it sometimes includes injuries, disabilities, disorders, syndromes, infections, isolated symptoms, deviant behaviors, and atypical variations of structure and function, while in other contexts and for other purposes these may be considered distinguishable categories.

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