immunocompromised host

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im·mu·no·com·pro·mised host

(im'yū-nō-kom'prŏ-mīzd hōst)
A person whose immune system's defenses have been weakened by exposure to disease, drugs, or radiotherapy.


(host) [L. hospes, stranger, guest, host]
1. The organism from which a parasite obtains its nourishment.
2. In embryology, the larger and more relatively normal of conjoined twins.
3. In transplantation of tissue, the one who receives the graft.

accidental host

A host other than the usual or normal one.

alternate host

Intermediate host (1).

compromised host

A person who lacks resistance to infection due to to a deficiency in any of the host defenses.
See: AIDS; host defense mechanisms; immunocompromised

dead-end host

An infected organism that does not have the ability to transmit infection to the definitive host.
Synonym: incidental host

definitive host

1. The final host or the host in which the parasite reaches sexual maturity. Synonym: final host
2. The vertebrate, when the intermediate host is an invertebrate.

final host

Definitive host (1).

immunocompromised host

See: immunocompromised

incidental host

Dead-end host.

intermediate host

1. The host in which a parasite passes through its larval or asexual stages of development. Synonym: alternate host
2. The invertebrate host, when the final host is a vertebrate.

paratenic host

A parasitized organism in which the parasite thrives but does not undergo development.

host of predilection

The host preferred by a parasite.

reservoir host

A host other than the usual or normal one, in which a parasite is capable of living. The reservoir host is a source of infestation.

transfer host

An interim host that is not essential for the completion of the life cycle of the parasite.
References in periodicals archive ?
While traditional viral culture may take up to 21 days to produce a positive result and serology is inherently insensitive and difficult to interpret particularly in the immunocompromised host, the current approach for diagnosing CMV infection in the HIV population relies primarily on histopathology, rapid antigenemia assays and PCR amplification methods.
veterana is a rare disease, but its incidence will most likely increase in the coming years because of the growing population of immunocompromised hosts. This case illustrates the difficulty of establishing a bacteriological diagnosis of nocardiosis and the necessity of performing specific investigations in immunocompromised patients who present with infectious disease because the severity of this infection requires early diagnosis and quick initiation of appropriate antibiotic therapy.
The preceding measles rash may be subtle or absent in an immunocompromised host. (4) The CSF examination may be normal, and specific measles testing using antibodies and more sensitive PCR may be negative.
Immunocompromised hosts are particularly at risk of PV-B19 infection, including patients with congenital or acquired immune deficiency, acquired immunodeficiency syndrome (AIDS) and cancer, and in transplant patients on immunosuppressive treatment.
Septic subacromial bursitis caused by Mycobacterium kansasii in an immunocompromised host. Mil Med 2012 May;177(5):617-20.
These two organisms are rare human pathogens and usually cause infection in immunocompromised hosts. Our patient had the misfortune of acquiring them after a needle stick injury while handling medical waste.
Retrospective analysis revealed E bieneusi proliferative serositis in 7 of 16 cases of peritonitis of unknown origin, suggesting that the organism may represent a common cause of peritonitis in the immunocompromised host. The morphologic findings of nonsuppurative inflammation accompanied by proliferating mesothelium was highly suggestive of Enterocytozoon infection and could be confirmed by ISH and PCR.
Recurrent contagious ecthyma (Orf) in an immunocompromised host successfully treated with cryotherapy.
Colonization is more common than infection; however an invasive pulmonary disease is seen usually in an immunocompromised host [2].
More recently, antibiotic-resistant pathogens not seen previously have emerged, particularly in the immunocompromised host. Some of these more important emerging pathogens have included Enterococcus species (especially E.
Respiratory syncytial virus and parainfluenza virus infections in the immunocompromised host. Semin Respir Infect.
shigelloides, a gram-negative bacterial rod, is an opportunistic pathogen in the immunocompromised host and has been suspected to cause diarrheal illness in normal hosts (1,2).