Risk for Tuberculosis among Children

Contacts of adults with tuberculosis (TB) are at risk for infection. Tests based on interferon-γ (IFN-γ) expression in response to Mycobacterium tuberculosis antigens may be more sensitive than the tuberculin skin test (TST). Risk for infection was assessed by using TST and an IFN-γ-based assay (Qua...

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Main Authors: Hiroshi Nakaoka, Lovett Lawson, S. Bertel Squire, Brian Coulter, Pernille Ravn, Inger Brock, C. Anthony Hart, Luis E. Cuevas
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2006-09-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/12/9/05-1606_article
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author Hiroshi Nakaoka
Lovett Lawson
S. Bertel Squire
Brian Coulter
Pernille Ravn
Inger Brock
C. Anthony Hart
Luis E. Cuevas
author_facet Hiroshi Nakaoka
Lovett Lawson
S. Bertel Squire
Brian Coulter
Pernille Ravn
Inger Brock
C. Anthony Hart
Luis E. Cuevas
author_sort Hiroshi Nakaoka
collection DOAJ
description Contacts of adults with tuberculosis (TB) are at risk for infection. Tests based on interferon-γ (IFN-γ) expression in response to Mycobacterium tuberculosis antigens may be more sensitive than the tuberculin skin test (TST). Risk for infection was assessed by using TST and an IFN-γ-based assay (QuantiFERON Gold in Tube [QFT-IT] test) for 207 children in Nigeria in 1 of 3 groups: contact with adults with smear-positive TB, contact with adults with smear-negative TB, and controls. For these 3 groups, respectively, TST results were >10 mm for 38 (49%) of 78, 13 (16%) of 83, and 6 (13%) of 46 and QFT-IT positive for 53 (74%) of 72, 8 (10%) of 81, and 4 (10.3%) of 39 (p<0.01). Most test discrepancies were TST negative; QFT-IT positive if in contact with TB-positive persons; and TST positive, QFT-IT negative if in contact with TB-negative persons or controls. TST may underestimate risk for infection with TB in children.
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spelling doaj.art-fbbd78b561914c898ac74ecb2fe6d8322022-12-22T00:23:36ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592006-09-011291383138810.3201/eid1209.051606Risk for Tuberculosis among ChildrenHiroshi NakaokaLovett LawsonS. Bertel SquireBrian CoulterPernille RavnInger BrockC. Anthony HartLuis E. CuevasContacts of adults with tuberculosis (TB) are at risk for infection. Tests based on interferon-γ (IFN-γ) expression in response to Mycobacterium tuberculosis antigens may be more sensitive than the tuberculin skin test (TST). Risk for infection was assessed by using TST and an IFN-γ-based assay (QuantiFERON Gold in Tube [QFT-IT] test) for 207 children in Nigeria in 1 of 3 groups: contact with adults with smear-positive TB, contact with adults with smear-negative TB, and controls. For these 3 groups, respectively, TST results were >10 mm for 38 (49%) of 78, 13 (16%) of 83, and 6 (13%) of 46 and QFT-IT positive for 53 (74%) of 72, 8 (10%) of 81, and 4 (10.3%) of 39 (p<0.01). Most test discrepancies were TST negative; QFT-IT positive if in contact with TB-positive persons; and TST positive, QFT-IT negative if in contact with TB-negative persons or controls. TST may underestimate risk for infection with TB in children.https://wwwnc.cdc.gov/eid/article/12/9/05-1606_articleTuberculosisinterferon-γchildrenNigerialatent infectionsQuantiferon
spellingShingle Hiroshi Nakaoka
Lovett Lawson
S. Bertel Squire
Brian Coulter
Pernille Ravn
Inger Brock
C. Anthony Hart
Luis E. Cuevas
Risk for Tuberculosis among Children
Emerging Infectious Diseases
Tuberculosis
interferon-γ
children
Nigeria
latent infections
Quantiferon
title Risk for Tuberculosis among Children
title_full Risk for Tuberculosis among Children
title_fullStr Risk for Tuberculosis among Children
title_full_unstemmed Risk for Tuberculosis among Children
title_short Risk for Tuberculosis among Children
title_sort risk for tuberculosis among children
topic Tuberculosis
interferon-γ
children
Nigeria
latent infections
Quantiferon
url https://wwwnc.cdc.gov/eid/article/12/9/05-1606_article
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AT briancoulter riskfortuberculosisamongchildren
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AT ingerbrock riskfortuberculosisamongchildren
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