dead-end host


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Related to dead-end host: Primary host

dead-end host

a host from which infectious agents are not transmitted to other susceptible hosts.

dead-end host

Etymology: AS, dead + ende + L, hospes, guest
1 a host from which infectious agents are not transmitted to other susceptible hosts.
2 any host organism from which a parasite cannot escape to continue its life cycle. Humans are dead-end hosts for trichinosis, because the larvae encysted in muscle and human flesh are unlikely to be a source of food for other animals susceptible to this parasite. Compare definitive host, intermediate host, reservoir host.

dead-end host

(ded-end hōst)
A host from which infectious agents are not transmitted to other susceptible hosts.

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).
References in periodicals archive ?
If these viruses cause severe disease in hooded vultures, these ubiquitous scavenging birds may simply be dead-end hosts.
In South America, isolated reports of infected dead-end hosts (horses) have come from northern Colombia and Argentina, but they lack evidence for infection in avian amplifying hosts (4,5).
Although WNV can infect a wide range of vertebrates, mammals are assumed to be dead-end hosts (7).
Terms such as multihost pathogens, dead-end hosts, reservoir hosts, host shifts, and spillovers are frequently used, but often different phrases are used to describe the same phenomenon, and possibly more concerning, the same terminology may be used to describe strictly different phenomena.
Individuals of species other than the maintenance host may also become infected; they are usually dead-end hosts because of low transmission ratios, which are caused by factors such as the failure to induce biting behavior, inefficient salivary shedding, and absence of other hosts with which to interact.