News tagged with infectious diseases

Related topics: hiv · vaccine · influenza · centers for disease control and prevention · virus

Mechanism of T cell self / non-self “education”

Researchers at the University of Tokyo have demonstrated that a protease only found in the thymus produces special peptides that promote positive selection of T cells that can detect non-self antigens, a process that allows ...

Jun 30, 2015
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Infectious disease

An infectious disease is a clinically evident disease resulting from the presence of pathogenic microbial agents, including pathogenic viruses, pathogenic bacteria, fungi, protozoa, multicellular parasites, and aberrant proteins known as prions. These pathogens are able to cause disease in animals and/or plants. Infectious pathologies are usually qualified as contagious diseases (also called communicable diseases) due to their potential of transmission from one person or species to another. Transmission of an infectious disease may occur through one or more of diverse pathways including physical contact with infected individuals. These infecting agents may also be transmitted through liquids, food, body fluids, contaminated objects, airborne inhalation, or through vector-borne spread.

The term infectivity describes the ability of an organism to enter, survive and multiply in the host, while the infectiousness of a disease indicates the comparative ease with which the disease is transmitted to other hosts. An infection however, is not synonymous with an infectious disease, as an infection may not cause important clinical symptoms or impair host function.

This text uses material from Wikipedia, licensed under CC BY-SA

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