autoinfection

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Related to autoinfection: hyperinfection, retroinfection

au·to·in·fec·tion

(aw'tō-in-fek'shŭn),

1. Reinfection by microbes or parasitic organisms that have already passed through an infective cycle.

2. Self-infection by direct contagion, as with pinworm (Enterobius vermicularis) eggs passed in the infectious state and transmitted by fingernails (anal-oral route).

Synonym(s): autoreinfection, self-infection

Farlex Partner Medical Dictionary © Farlex 2012

autoinfection

(ô′tō-ĭn-fĕk′shən)

Infection, such as recurrent boils, caused by bacteria, viruses, or parasites that persist on or in the body.

au·to·in·fec·tion

(aw'tō-in-fek'shŭn)

1. Reinfection by microbes or parasitic organisms on or within the body that have already passed through an infective cycle, such as a succession of boils, or a new infective cycle with production of a new generation of larvae and adults.

2. Self-infection by direct contagion as with parasite eggs passed in the infectious state transmitted by fingernails (anal-oral route).
Synonym(s): autoreinfection.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

autoinfection

Infection with bacteria or viruses surviving on or in the body, or transferred from one part of the body to another.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Autoinfection

An infection caused by a disease agent that is already present in the body.

Mentioned in: Threadworm Infection

au·to·in·fec·tion

(aw'tō-in-fek'shŭn)

Reinfection by microbes or parasitic organisms that have already passed through an infective cycle.

Medical Dictionary for the Dental Professions © Farlex 2012

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References in periodicals archive ?

Additionally, due to the autoinfection mechanism of the parasite, chronic strongyloidiasis may result in hyperinfection and spread to other organs [6, 18, 25].

Strongyloides stercoralis Infection in Alcoholic Patients

Rhabditiform larvae mature and penetrate the skin in perianal area, leading eventually to autoinfection. (6)

Strongyloides hyperinfection syndrome complications: a case report and review of the literature

Aberrantly, humans can assume the role of intermediate host by accidental ingestion of eggs in contaminated water or uncooked vegetables; by autoinfection due to unsanitary personal habits; or by reverse peristalsis of the eggs from the intestine to stomach.

Mylohyoid cysticercosis: a rare submandibular mass

Infections are generally soil transmitted, with the exception of Strongyloides and Enterobius, where infection can result from direct transmission and is perpetuated by autoinfection. Strongyloides hyperinfection can result from autoinfection in immunocompromised individuals, where infective larvae can cause a severe disseminated illness with a high fatality rate.

Nematodes

Ultrastructural details of the xenoma of Loma myrophis (phylum Microsporidia) and extrusion of the polar tube during autoinfection. Dis.

Xenomas in Crassostrea rhizophorae (Ostreidae) from Camamu Bay, Bahia, Brazil

Upon fertilization, the oocyst may either pass out with feces or excyst in the host's intestine, thus starting a new life cycle (autoinfection).

Prevalence of Giardia and Cryptosporidium in muskrats in northeastern Pennsylvania and New Jersey

Autoinfection can occur and represents a permutation of the life cycle.

Strongyloidiasis: A review and update by case example

* Humans develop cysticercosis by ingestion of Taenia solium eggs in fecally contaminated food or by autoinfection (from eggs carried from the intestine into the stomach by reverse peristalsis).

Neurocysticercosis: nursing perspectives

Once rhabditiform larvae mature in the host, autoinfection occurs and the filariform larvae are now free to reinfect.

Nematodes: Worms of the world

Transmission occurs in three ways: direct patient-to-patient contact, nosocomial spread, and autoinfection (Smith et al., 1993).

Burkholderia Cepacia in Cystic Fibrosis: Implications for Nursing Practice

In the latter two strategies, definitive hosts were generally infected by eating infected second intermediate hosts, but some infections occurred by autoinfection (digestion of their own infected skin), as seen in Glypthelmins sp.

Utilization of the trophic structure of small pond ecosystems by helminths of frogs, Rana catesbeiana and Rana utricularia

Strongyloidiasis hyperinfection syndrome (SHS) is a manifestation of accelerated autoinfection in an immunocompromised host (chronic steroid users and HTLV-1-infected individuals) involving multiple organs (disseminated disease) and extensive gastrointestinal (GI) involvement.

Strongyloidosis Hyperinfection Syndrome in an HIV-infected Patient: A Rare Manifestation of Immune Reconstitution Inflammatory Syndrome