1996
DOI: 10.1164/ajrccm.153.1.8542139
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Transmission of tuberculosis to close contacts of patients with multidrug-resistant tuberculosis.

Abstract: Multidrug-resistant tuberculosis (MDRTB) has emerged as a major public health problem worldwide. To determine the incidence and risk factors associated with tuberculosis among contacts of MDRTB index cases, we studied human immunodeficiency virus-seronegative close contacts of 64 culture-confirmed MDRTB patients in Rio de Janeiro, Brazil. Between March 1988 and July 1992, tuberculosis developed in 17 (7.8%) of 218 previously healthy close contacts of 64 MDRTB index cases (1.6 cases per 1,000-person-months of c… Show more

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Cited by 106 publications
(73 citation statements)
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“…Colabora para esta hipótese a alta cobertura da vacinação BCG que, segundo Kritski e cols 12 , protegeria contatos intradomiciliares da transmissão de bacilos MR, além das observações de Melo e cols., no ICF, relatando que portadores de TBMR pós-primária, não curados com o tratamento alternativo, eliminaram cepas sensíveis no agravamento tardio da doença 19 , e que, filhos de MR pós-primários adoeceram, em sua maioria, com cepas sensíveis ou curaram quando tratados com drogas usuais 17 .…”
Section: Resultsunclassified
“…Colabora para esta hipótese a alta cobertura da vacinação BCG que, segundo Kritski e cols 12 , protegeria contatos intradomiciliares da transmissão de bacilos MR, além das observações de Melo e cols., no ICF, relatando que portadores de TBMR pós-primária, não curados com o tratamento alternativo, eliminaram cepas sensíveis no agravamento tardio da doença 19 , e que, filhos de MR pós-primários adoeceram, em sua maioria, com cepas sensíveis ou curaram quando tratados com drogas usuais 17 .…”
Section: Resultsunclassified
“…However, the tuberculosis control program faces new challenges caused by the increase in multidrug-resistant tuberculosis (Fiuza et al 1996, Kritski et al 1996. Drug resistance is a limiting factor for the success of chemotherapy of tuberculosis and evaluation of bacteriostatic and bactericidal activities is essential for the assessment of susceptibility to antimycobacterial drugs before treatment (Kantor & Laslo 1998).…”
Section: Methodsmentioning
confidence: 99%
“…Some authors believe that contact control is one way of diagnosing TB at an early stage and reducing its dissemination (4)(5)(6)(7)(8)(9)(10) . However, it is observed that this strategy has not been effectively put into practice.…”
Section: Introductionmentioning
confidence: 99%
“…In spite of being a serious public health issue in Brazil, few studies look at the assessment of contacts and disease prevention actions among families and the community as part of the health surveillance program (9)(10)(11) . Thus, this study is justified by the fact that it is based on the need to learn about what authors on TB in Brazil have addressed regarding contacts.…”
Section: Introductionmentioning
confidence: 99%