WordNet

an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
(genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
a rack attached to a vehicle; for carrying luggage or skis or the like
a self-propelled wheeled vehicle designed specifically to carry something; "refrigerated carriers have revolutionized the grocery business"
someone whose employment involves carrying something; "the bonds were transmitted by carrier" (同)bearer, toter
a person or firm in the business of transporting people or goods or messages (同)common_carrier
(medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others (同)immune carrier
a boy who delivers newspapers (同)newsboy
having no symptoms of illness or disease (同)symptomless

PrepTutorEJDIC

『運搬する人』;輸送業者(会社) / 運搬する物,運客車;運客設備 / (…の)媒介体,保菌者《+『of』+『名』》 / (また『aircraft carrier』)航空母艦 / (自転車・車の)荷台

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/14 23:39:02」(JST)

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Typhoid Mary in a 1909 newspaper illustration

An asymptomatic carrier (healthy carrier or just carrier) is a person or other organism that has contracted an infectious disease, but who displays no symptoms. Although unaffected by the disease themselves, carriers can transmit it to others.^[1]

In humans, HIV goes through a long latency period, during which the host is asymptomatic.^[2] Many carriers are infected with persistent viruses such as EBV and Cytomegalovirus that only rarely progress to a disease state. Herpes simplex viral infection may also be asymptomatic and can be spread without the originally infected person realising they are infected.^[3]

C. difficile has also been shown to be spread by asymptomatic carriers, and poses significant problems in care home settings.^[4]

Mary Mallon, known as "Typhoid Mary", was an asymptomatic carrier of typhoid fever.^[5] She worked as a cook for several families in New York City at the beginning of the twentieth century and she also cooked for the soldiers. Several cases of typhoid fever in members of those families were traced to her by the Health Department. It appeared that she "carried" the infectious agent without becoming sick. There was at the time no way of eradicating the disease, and an attempt was made to restrict her from continuing to work as a cook to avoid spreading it to others.

References[edit]

^ "Dictionary Definition". Retrieved 20 August 2013.
^ Siliciano, Robert F. "HIV Latency". Cold Spring Harbor Laboratory Press. Retrieved 20 August 2013.
^ "Asymptomatic Herpes". Retrieved 20 August 2013.
^ Riggs, M. M.; Sethi, A. K.; Zabarsky, T. F.; Eckstein, E. C.; Jump, R. L. P.; Donskey, C. J. (2007). "Asymptomatic Carriers Are a Potential Source for Transmission of Epidemic and Nonepidemic Clostridium difficile Strains among Long-Term Care Facility Residents". Clinical Infectious Diseases 45 (8): 992–998. doi:10.1086/521854. PMID 17879913. edit
^ "Scientists get a handle on what made Typhoid Mary’s infectious microbes tick - See more at: http://med.stanford.edu/ism/2013/august/typhoid.html#sthash.INpMkz0m.dpuf". Retrieved 20 August 2013.

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UpToDate Contents

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1. 連鎖球菌扁桃咽頭炎の治療における抗菌薬不全 antibiotic failure in the treatment of streptococcal tonsillopharyngitis
2. B型肝炎の管理の概要および症例 overview of the management of hepatitis b and case examples
3. 進行性核上性麻痺（PSP） progressive supranuclear palsy psp
4. B型肝炎ウイルス感染の臨床症状および自然経過 clinical manifestations and natural history of hepatitis b virus infection
5. 成人におけるクロストリジウム・ディフィシル感染の臨床症状および診断 clinical manifestations and diagnosis of clostridium difficile infection in adults

English Journal

Atrial Fibrillation: An Observational Study with Outpatients.

Albina G1, DE Luca J, Conde D, Giniger A.
Pacing and clinical electrophysiology : PACE.Pacing Clin Electrophysiol.2014 Jul 16. doi: 10.1111/pace.12462. [Epub ahead of print]
BACKGROUND: Atrial fibrillation (AF) is the most common sustained arrhythmia with serious clinical consequences in the absence of treatment. However, there are limited data on the treatment of these patients in Argentina. The objective was to describe the therapeutic management of patients with nona
PMID 25040946

Prevalence and Risk Factors for Asymptomatic Clostridium difficile Carriage.

Alasmari F1, Seiler SM2, Hink T2, Burnham CA3, Dubberke ER2.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.Clin Infect Dis.2014 Jul 15;59(2):216-22. doi: 10.1093/cid/ciu258. Epub 2014 Apr 21.
BACKGROUND: Clostridium difficile infection (CDI) incidence has increased dramatically over the last decade. Recent studies suggest that asymptomatic carriers may be an important reservoir of C. difficile in healthcare settings. We sought to identify the prevalence and risk factors for asymptomatic
PMID 24755858

Sequestration of multiple RNA recognition motif-containing proteins by C9orf72 repeat expansions.

Cooper-Knock J1, Walsh MJ1, Higginbottom A1, Robin Highley J1, Dickman MJ2, Edbauer D3, Ince PG1, Wharton SB1, Wilson SA4, Kirby J1, Hautbergue GM1, Shaw PJ5.
Brain : a journal of neurology.Brain.2014 Jul;137(Pt 7):2040-51. doi: 10.1093/brain/awu120. Epub 2014 May 27.
GGGGCC repeat expansions of C9orf72 represent the most common genetic variant of amyotrophic lateral sclerosis and frontotemporal degeneration, but the mechanism of pathogenesis is unclear. Recent reports have suggested that the transcribed repeat might form toxic RNA foci that sequester various RNA
PMID 24866055

Japanese Journal

Relationship between pine wilt disease development in asymptomatic carrier trees of Bursaphelenchus xylophilus (Nematoda: Apelenchoididae) and their use by Monochamus alternatus (Coleoptera: Cerambycidae)