host

(redirected from alternate host)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to alternate host: host specificity

host

 [hōst]
1. an animal or plant that harbors and provides sustenance for another organism (the parasite).
2. the recipient of an organ or other tissue derived from another organism (the donor).
accidental host one that accidentally harbors an organism that is not ordinarily parasitic in the particular species.
definitive host (final host) a host in which a parasite attains sexual maturity.
intermediate host a host in which a parasite passes one or more of its asexual stages; usually designated first and second, if there is more than one.
paratenic host a potential or substitute intermediate host that serves until the appropriate definitive host is reached, and in which no development of the parasite occurs; it may or may not be necessary to the completion of the parasite's life cycle.
host of predilection the host preferred by a parasite.
primary host definitive host.
reservoir host an animal (or species) that is infected by a parasite, and which serves as a source of infection for humans or another species.
secondary host intermediate host.
transfer host one that is used until the appropriate definitive host is reached, but is not necessary to completion of the life cycle of the parasite.

host

(hōst),
The organism in or on which a parasite lives, deriving its body substance or energy from the host.
[L. hospes, a host]

host

(hōst)
1. an organism that harbors or nourishes another organism (the parasite).
2. the recipient of an organ or other tissue derived from another organism (the donor).

accidental host  one that accidentally harbors an organism that is not ordinarily parasitic in the particular species.
definitive host , final host the organism in which a parasite passes its adult and sexual existence.
intermediate host  the organism in which a parasite passes its larval or nonsexual existence.
paratenic host  an animal acting as a substitute intermediate host of a parasite, usually having acquired the parasite by ingestion of the original host.
primary host  definitive h.
reservoir host  reservoir (3).

host

(hōst)
n.
1. Biology
a. An organism on which or in which another organism lives.
b. A cell that has been infected by a virus or other infective agent.
2. Medicine The recipient of a transplanted tissue or organ.

host′ly adj.

host

[hōst]
Etymology: L, hospes
1 an organism in which another, usually parasitic, organism is nourished and harbored. A definitive host is one in which the adult parasite lives and reproduces. An intermediate host is one in which the parasite exists in its nonsexual, larval stage. A reservoir host is a primary animal host for organisms that are sometimes parasitic in humans and through which humans may become infected.
2 the recipient of a transplanted organ or tissue. Compare donor.

host

Epidemiology Any organism that can be infected by a pathogen under natural conditions. See Definitive host, Intermediate host, Paratenic host, Transport host Immunology Graft recipient. See Graft, Transplant Informatics A networked computer that performs centralized functions–eg, providing access program or data files to computers in a network; a host may be self-contained or located on Internet; computer that acts as a source of information or capabilities for multiple terminals, peripherals and/or users. See Node, Network. Cf Server.

host

(hōst)
The organism in or on which a parasite lives, thus deriving its body substance or energy.
[L. hospes, a host]

host

1. An organism that provides a residence and nourishment for a parasite.
2. A person receiving a graft of a donated organ or tissue.

host

  1. the organism on which a PARASITE lives.
  2. the recipient of a tissue transplant.
  3. the recipient of recombinant VECTOR molecules (in GENETIC ENGINEERING) or other genetic elements, which can maintain and propagate them.

Host

The organism that harbors or nourishes another organism (parasite). In bartonellosis, the person infected with Bartonella basilliformis.

host

1. an animal or plant that harbors and provides sustenance for another organism (the parasite). Includes paratenic, intermediate etc.
2. the recipient of an organ or other tissue derived from another organism (the donor).

accidental host
one that accidentally harbors an organism that is not ordinarily parasitic in the particular species.
alternate host
intermediate host.
dead-end host
the disease cannot be transmitted from the infected host to another animal.
host determinants
characteristics in the host which determine its susceptibility to a disease, e.g. closeness to parturition and metabolic diseases.
host-parasite reaction
the inflammatory reaction that sometimes occurs around a parasite in tissues, e.g. a warble fly larva in the esophageal wall.
predilection host
the host preferred by a parasite.
primary host
definitive host.
reservoir host
an animal (or species) that is infected by a parasite, and which serves as a source of infection for humans or another species.
host risk factors
epidemiological factors contributing to the development of a disease and which are contributed by the host.
secondary host
intermediate host.
host specificity
the characteristic of a parasite that renders it capable of infecting only one or more specific hosts.
transfer host, transport host
one that is used until the appropriate definitive host is reached, but is not necessary to complete the life cycle of the parasite.
host variable
see host determinants (above).

Patient discussion about host

Q. I was diagnosed with depression and have taken a whole host of antidepressants. I’m Mark, 29 years old male. I was diagnosed with depression and have taken a whole host of antidepressants. My eyes are extremely blurry, I’m worrying about that. Does this side effect go away with time, or is it permanent while on medications?

A. Mark, you really need to consult your doctor. I hope you're not relying totally on the Internet for medical advice. Side effects are common with most drugs, and some are more tolerable than others. "Extremely blurry" eyes seems like it could affect your driving, as cbellh47 wrote, but many other things as well.

Sometimes it does take many, many attempts to discover an anti-depressant or a combination of more than one to achieve a better mood balance. We're all chemically different and react to drugs differently. There's many options and I had to endure years of experimentation before I was satisfied, but I now have the rest of my life to appreciate what I went through.

I also used the help of different doctors and psychiatrists, as well as self-learning. If your doctor doesn't seem to be beneficial, consider asking him/her to recommend a specialist. New treatments come to light regularly and not all docotrs are wise to them.

Just yesterday (01.20.09) a new, control

More discussions about host
References in periodicals archive ?
Instead, they rely heavily on cultural practices such as proper spacing and pruning, balanced watering, fertilizer monitoring, elimination of weeds and other alternate hosts, and the use of resistant varieties to reduce pest populations.
Equal numbers of flies were placed on the host from which the fly was reared and the alternate host plant each day.
The apartment would have to be vacant for over a year (that's how long bed bugs can live without feeding), not be attached to another occupied unit where bugs could have migrated, and contain no alternate hosts, such as a mouse somewhere in the structure.
Until 2005, no alternate hosts of cotton mealybug were known, because the identity of the pest was uncertain and the problem was new.
and the introduced nutria (Myocastor coypus Molina) also seem likely alternate hosts for the beetle; however, no known records of P.
Some of these diseases are caused by preexisting viruses that have the capacity to infect alternate hosts under certain conditions (e.
Given that all ticks use wildlife as primary or alternate hosts, the presence of large wildlife populations often translates into high tick populations, restricting the use of many recreational sites for at least part of the year.
This book explains the ecology of viruses by examining their interactive dynamics with their hosting species (this 2-volume set covers animals as well as microbes and plants), including the types of transmission cycles that viruses have evolved encompassing principal and alternate hosts, vehicles and vectoring species.
Primarily, the use of disease-resistant varieties, proper crop rotation and good weed management of alternate hosts can decrease the likelihood of a soil-borne disease infesting a field.
She has been studying the possible alternate hosts of the corn pest when corn is not available.
This book explains the ecology of viruses by examining their interactive dynamics with their hosting species (in this volume, in microbes and plants), including the types of transmission cycles that viruses have evolved encompassing principal and alternate hosts, vehicles, and vectoring species.

Full browser ?