Transport host Health Dictionary

Transport Host: From 1 Different Sources


Host

A person or other living animal that affords subsistence or lodgement to an infectious agent under natural conditions; in an epidemiologic context, the host may be the population or group, or biological, social and behavioural characteristics of the group.... host

Graft-versus-host Disease

A complication of a bone marrow transplant in which immune system cells in the transplanted marrow attack the recipient’s tissues. Graft-versus-host (GVH) disease may occur soon after transplantation or appear some months later. The first sign is usually a skin rash. This may be followed by diarrhoea, abdominal pain, jaundice, inflammation of the eyes and mouth, and breathlessness.

GVH disease can usually be prevented by administration of immunosuppressant drugs. If the disease develops, it can be treated with corticosteroid drugs and immunosuppressant drugs such as ciclosporin In some cases, however, it can be difficult to control.... graft-versus-host disease

Definitive Or Final Host

An animal wherein the adult stage of the parasite resides.... definitive or final host

Graft Versus Host Disease (gvhd)

A condition that is a common complication of BONE MARROW transplant (see TRANSPLANTATION). It results from certain LYMPHOCYTES in the transplanted marrow attacking the transplant recipient’s tissues, which they identify as ‘foreign’. GVHD may appear soon after a transplant or develop several months later. The condition, which is fatal in about a third of victims, may be prevented by immunosuppressant drugs such as ciclosporin.... graft versus host disease (gvhd)

Host Range

Array of hosts susceptible to infection with an agent.... host range

Hostel

An establishment which provides accommodation for older or disabled persons who cannot live independently but do not need nursing care, although some personal care may be provided.... hostel

Intermediate Host

An animal or human host where the juvenile stages of the parasite undergo an asexual reproductive phase of development but not reaching adult stage.... intermediate host

Paratenic Host

An intermediate host which becomes infected by consuming another intermediate host and in which the parasite does not develop any further than in the first intermediate host. Also called a “transport host”.... paratenic host

Reservoir Host

An animal species which carries a pathogen without detriment to itself and serves as a source of infection. Host which acts as a reservoir of the infection in nature.... reservoir host

Resistance (host)

The sum total of body mechanisms which interpose barriers to the progress of invasion or multiplication of infectious agents, or to damage by their toxic products. 1. Immunity - That resistance usually associated with possession of antibodies having a specific action on the microorganism concerned with a particular infectious disease or on its toxin. Passive immunity is attained either naturally, by maternal transfer, or artificially, by inoculation of specific protective antibodies (convalescent or immune serum or immune serum (gamma) globulin (human) and is of brief duration (days to months). Active immunity lasting months to years is attained either naturally, by infection, with or without clinical manifestations, or artificially, byinoculation of fractions or products of the infectious agent or of the agent itself, in killed, modified or variant form. 2. Inherent resistance - An ability to resist disease independently of antibodies or of specifically developed tissue response; it commonly rests in anatomic or physiologic characteristics of the host; it may be genetic or acquired, permanent or temporary.... resistance (host)

Active Transport

(in biochemistry) an energy-dependent process in which certain substances (including ions, some drugs, and amino acids) are able to cross cell membranes against a concentration gradient. The process is inhibited by substances that interfere with cellular metabolism (e.g. high doses of digitalis).... active transport

Electron Transport Chain

a series of enzymes and proteins in living cells through which electrons are transferred, via a series of oxidation-reduction reactions. This ultimately leads to the conversion of chemical energy into a readily usable and storable form. The most important electron transport chain is the respiratory chain, present in mitochondria and functioning in cellular respiration.... electron transport chain

Mucociliary Transport

the process by which cilia (see cilium) move a thin film of *mucus from the upper and lower respiratory tracts towards the digestive tract. Particles of dust and microorganisms are trapped on the mucus and thereby removed from the respiratory tract.... mucociliary transport



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