Abstract Background The evaluation of household contacts of leprosy cases allows the early diagnosis of new cases. Objective To associate the results of the ML Flow test with the clinical characteristics of leprosy cases and to verify their positivity in household contacts, in addition to describing the epidemiological profile of both. Methods Prospective study with patients diagnosed over the course of one year (n = 26), without prior treatment, and their household contacts (n = 44) in six municipalities in northwestern São Paulo, Brazil. Results There was a predominance of men among the leprosy cases, of 61.5% (16/26); 77% (20/26) were over 35 years old; 86.4% (22/26) were multibacillary; 61.5% (16/26) had a positive bacilloscopy; and 65.4% (17/26) had no physical disability. The ML Flow test was positive in 53.8% (14/26) of the leprosy cases and was associated with those who had a positive bacilloscopy and were diagnosed as multibacillary (p-value <0.05). Among the household contacts, 52.3% (23/44) were women and aged over 35 years; 81.8% (36/44) had been vaccinated with BCG ‒ Bacillus Calmette-Guérin. The ML Flow test was positive in 27.3% (12/44) of household contacts, all of whom lived with multibacillary cases; seven lived with positive bacilloscopy cases and six with consanguineous cases. Study limitations Difficulty in convincing the contacts to undergo the evaluation and collection of the clinical sample. Conclusion The ML Flow test, when positive in household contacts, can help the identification of cases that require more attention by the health team, as it indicates a predisposition to disease development, especially when they are household contacts of multibacillary cases, with positive bacilloscopy and consanguineous. The ML Flow test also helps in the correct clinical classification of the leprosy cases.

ABSTRACT Objective To present the frequency and species diversity of non-tuberculous mycobacteria, estimate the prevalence of non-tuberculous mycobacterial pulmonary disease, describe the epidemiological profile, and determine the follow-up of patients with non-tuberculous mycobacterial pulmonary disease living in a region with a high burden of tuberculosis. Methods This a retrospective cohort observational study using data records obtained from the Instituto Adolfo Lutz - Santos and from the São Paulo Sistema de Vigilância de Tuberculose do Estado de São Paulo in the period between 2000 and 2009. The studied variables were: socio-demographic characteristics, current and past history of tuberculosis, aspects related to diagnosis, and treatment and associated diseases. Results We included 319 non-tuberculous mycobacteria isolates in the study, corresponding to 257 patients. The species Mycobacterium kansasii (28.5%) and Mycobacterium fortuitum (16.6%) presented the higher occurrence. In 10.9% (24) of the patients, there was a criterion for confirming a case of pulmonary disease due to non-tuberculous mycobacteria. In relation to gender and age, male and individuals over 50 years old were the most frequent. Considering the confirmed cases, 47.8% had a past history of tuberculosis. Conclusion The lack of information about the cases is evident, since pulmonary disease due to non-tuberculous mycobacteria is not mandatory. The therapeutic regimen according to the identified species is fundamental for success in combating the infections caused by non-tuberculous mycobacteria. Besides that, information about the regional epidemiology of pulmonary disease caused by non-tuberculous mycobacteria and the search for associations with other comorbidities are important to establish the correct treatment. In order to improve surveillance of pulmonary diseases by non-tuberculous mycobacteria, we suggest the implantation of a sentinel surveillance and of population-based studies.

Objective. To present the situational diagnosis of the laboratory reference network for leprosy in the region of São José do Rio Preto, SP, Brazil. Methods. An online form was sent to each person responsible for the leprosy program. Results. All 102 municipalities that make up the region sent the requested data, 82.4% (84/102) requested slit skin smear microscopy and of these 68 received training. Of the total, 11.7% send slit skin smear to other laboratories without respecting the reference network. Only 57.8% (59/102) requested a biopsy, of these 47 had a doctor responsible for the collection and 31 didn´t respect the reference network for forwarding the biopsies. Aspects that make it difficult to diagnose leprosy cases in the region have been described as the lack of an adequate room, trained professionals, the absence of material for transportation and the request for printed exams. Conclusion. The laboratory network is fragile and needs to be respected in its initial composition or reorganized.

Objetivo. Apresentar o diagnóstico situacional da rede laboratorial para hanseníase na região de São José do Rio Preto, SP, Brasil. Métodos. Pesquisa de avaliação com desenho descritivo. Os dados foram coletados por meio de formulário online preenchido pelos responsáveis do programa de hanseníase, em 2018. Resultados. Todos os 102 municípios que compõem a região enviaram os dados solicitados, 84 (82,4%) solicitavam a baciloscopia e destes, 68 receberam capacitação. Do total, 11,7% enviavam baciloscopia para outros laboratórios sem respeitar a rede de referência. Apenas 59 (57,8%) solicitavam a biópsia e destes, 47 tinham médico responsável pela coleta e 31 não respeitavam a rede de referência para encaminhamento das biópsias. Foram descritos, como aspectos que dificultavam o diagnóstico dos casos de hanseníase na região, a falta de sala adequada, poucos profissionais capacitados, ausência de material para transporte e de requisição de exames impressa. Conclusão. A rede laboratorial se encontra fragilizada, necessitando reestruturação.

Resumo Objetivo: Apresentar o diagnóstico situacional da rede laboratorial para hanseníase na região de São José do Rio Preto, SP, Brasil. Métodos: Pesquisa de avaliação com desenho descritivo. Os dados foram coletados por meio de formulário online preenchido pelos responsáveis pelo programa de hanseníase, em 2018. Resultados: Todos os 102 municípios que compõem a região enviaram os dados solicitados, 84 (82,4%) solicitavam a baciloscopia; e destes, 68 receberam capacitação. Do total, 11,7% enviavam baciloscopia para outros laboratórios sem respeitar a rede de referência. Apenas 59 (57,8%) solicitavam a biópsia, e destes, 47 tinham médico responsável pela coleta e 31 não respeitavam a rede de referência para encaminhamento das biópsias. Foram descritos, como aspectos que dificultavam o diagnóstico dos casos de hanseníase na região, a falta de sala adequada, poucos profissionais capacitados, ausência de material para transporte e de requisição de exames impressa. Conclusão: A rede laboratorial se encontra fragilizada, necessitando reestruturação.

Abstract Objective: To present the situational diagnosis of the leprosy laboratory reference network in the region of São José do Rio Preto, SP, Brazil. Methods: This was an evaluation study with a descriptive design. The data were collected by means of an online form filled in by those in charge of the leprosy program in 2018. Results: All 102 municipalities that make up the region provided the requested data, 82.4% (84/102) requested slit-skin smear microscopy and of these 68 received training. Of the total, 11.7% sent slit-skin smears to other laboratories outside the reference network. Only 57.8% (59/102) requested a biopsy, of these 47 had a doctor responsible for taking the biopsy sample and 31 did not send biopsy samples for analysis in the reference network. Lack of an adequate room, few trained professionals, absence of material for transportation and absence of printed test requisitions were described as aspects that hinder leprosy case diagnosis in the region. Conclusion: The laboratory network is fragile and needs to be restructured.

Resumen Objetivo: Presentar el diagnóstico de la situación de la red de laboratorios para lepra en la región de São José do Rio Preto, SP, Brasil. Métodos: Estudio de evaluación con diseño descriptivo. Los datos fueron recolectados a través de un formulario en línea por cada persona responsable del programa de lepra en 2018. Resultados: Los 102 municipios que conforman la región enviaron los datos solicitados, el 82,4% (84/102) solicitaba la baciloscopia y de estos 68 recibieron capacitación. Del total, el 11.7% enviaba la baciloscopia a otros laboratorios sin respetar la red de referencia. Solo el 57,8% (59/102) solicitó una biopsia, y de estos, 47 tenía un médico responsable de la recolección y 31 no respetaron la red de referencia para enviar las biopsias. Los aspectos que dificultan el diagnóstico de casos de lepra en la región SJRP se describieron como la falta de una sala adecuada, profesionales capacitados, ausencia de material para el transporte y de solicitudes de exámenes impresos. Conclusión: La red de laboratorios está fragilizada y debe ser respetada en su composición inicial o reexaminada y reorganizada.

Resumo Objetivo: Apresentar o diagnóstico situacional da rede laboratorial para hanseníase na região de São José do Rio Preto, SP, Brasil. Métodos: Pesquisa de avaliação com desenho descritivo. Os dados foram coletados por meio de formulário online preenchido pelos responsáveis pelo programa de hanseníase, em 2018. Resultados: Todos os 102 municípios que compõem a região enviaram os dados solicitados, 84 (82,4%) solicitavam a baciloscopia; e destes, 68 receberam capacitação. Do total, 11,7% enviavam baciloscopia para outros laboratórios sem respeitar a rede de referência. Apenas 59 (57,8%) solicitavam a biópsia, e destes, 47 tinham médico responsável pela coleta e 31 não respeitavam a rede de referência para encaminhamento das biópsias. Foram descritos, como aspectos que dificultavam o diagnóstico dos casos de hanseníase na região, a falta de sala adequada, poucos profissionais capacitados, ausência de material para transporte e de requisição de exames impressa. Conclusão: A rede laboratorial se encontra fragilizada, necessitando reestruturação.

Abstract Objective: To present the situational diagnosis of the leprosy laboratory reference network in the region of São José do Rio Preto, SP, Brazil. Methods: This was an evaluation study with a descriptive design. The data were collected by means of an online form filled in by those in charge of the leprosy program in 2018. Results: All 102 municipalities that make up the region provided the requested data, 82.4% (84/102) requested slit-skin smear microscopy and of these 68 received training. Of the total, 11.7% sent slit-skin smears to other laboratories outside the reference network. Only 57.8% (59/102) requested a biopsy, of these 47 had a doctor responsible for taking the biopsy sample and 31 did not send biopsy samples for analysis in the reference network. Lack of an adequate room, few trained professionals, absence of material for transportation and absence of printed test requisitions were described as aspects that hinder leprosy case diagnosis in the region. Conclusion: The laboratory network is fragile and needs to be restructured.

Resumen Objetivo: Presentar el diagnóstico de la situación de la red de laboratorios para lepra en la región de São José do Rio Preto, SP, Brasil. Métodos: Estudio de evaluación con diseño descriptivo. Los datos fueron recolectados a través de un formulario en línea por cada persona responsable del programa de lepra en 2018. Resultados: Los 102 municipios que conforman la región enviaron los datos solicitados, el 82,4% (84/102) solicitaba la baciloscopia y de estos 68 recibieron capacitación. Del total, el 11.7% enviaba la baciloscopia a otros laboratorios sin respetar la red de referencia. Solo el 57,8% (59/102) solicitó una biopsia, y de estos, 47 tenía un médico responsable de la recolección y 31 no respetaron la red de referencia para enviar las biopsias. Los aspectos que dificultan el diagnóstico de casos de lepra en la región SJRP se describieron como la falta de una sala adecuada, profesionales capacitados, ausencia de material para el transporte y de solicitudes de exámenes impresos. Conclusión: La red de laboratorios está fragilizada y debe ser respetada en su composición inicial o reexaminada y reorganizada.

Drug-resistant tuberculosis (TB) is a growing global threat. Approximately 450,000 people developed multidrug-resistant TB worldwide in 2012 and an estimated 170,000 people died from the disease. This paper describes the sociodemographic, clinical-epidemiological and bacteriological aspects of TB and correlates these features with the distribution of anti-TB drug resistance. Mycobacterium tuberculosis (MT) cultures and drug susceptibility testing were performed according to the BACTEC MGIT 960 method. The results demonstrated that MT strains from individuals who received treatment for TB and people who were infected with human immunodeficiency virus were more resistant to TB drugs compared to other individuals (p < 0.05). Approximately half of the individuals received supervised treatment, but most drug-resistant cases were positive for pulmonary TB and exhibited positive acid-fast bacilli smears, which are complicating factors for TB control programs. Primary healthcare is the ideal level for early disease detection, but tertiary healthcare is the most common entry point for patients into the system. These factors require special attention from healthcare managers and professionals to effectively control and monitor the spread of TB drug-resistant cases.

OBJETIVO: Comparar o desempenho da técnica nested polymerase chain reaction (NPCR) com aquele de culturas na detecção do complexo Mycobacterium tuberculosis em espécimes pulmonares e extrapulmonares.MÉTODOS: Analisamos 20 e 78 espécimes pulmonares e extrapulmonares, respectivamente, de 67 pacientes hospitalizados com suspeita de tuberculose. Um sistema automatizado foi utilizado na identificação de culturas de Mycobacterium spp., e M. tuberculosis IS6110 foi utilizada como sequência alvo na NPCR. A estatística kappa foi utilizada para verificar a concordância entre os resultados.RESULTADOS: Entre os 67 pacientes, 6 e 5, respectivamente foram diagnosticados com tuberculose pulmonar e extrapulmonar, e a NPCR foi positiva em todos os casos. Entre os 98 espécimes clínicos, a baciloscopia, cultura e NPCR foram positivas em 6,00%, 8,16% e 13,26%, respectivamente. Comparando-se os resultados da NPCR com aqueles da cultura (padrão ouro) nos espécimes pulmonares, a sensibilidade e a especificidade foram 100% e 83%, respectivamente, enquanto essas nos espécimes extrapulmonares foram 83% e 96% respectivamente, com boa concordância entre os testes (kappa, 0,50 e 0,6867, respectivamente).CONCLUSÕES: Embora a NPCR tenha se mostrado uma ferramenta muito útil na detecção do complexo M. tuberculosis, No entanto, os resultados positivos da NPCR devem ser associados à clínica, dados clínicos, epidemiológicos e outros dados laboratoriais devem também ser considerados no diagnóstico e tratamento da tuberculose pulmonar e extrapulmonar.

OBJECTIVE: To compare the performance of nested polymerase chain reaction (NPCR) with that of cultures in the detection of the Mycobacterium tuberculosis complex in pulmonary and extrapulmonary specimens.METHODS: We analyzed 20 and 78 pulmonary and extrapulmonary specimens, respectively, of 67 hospitalized patients suspected of having tuberculosis. An automated microbial system was used for the identification of Mycobacterium spp. cultures, and M. tuberculosis IS6110 was used as the target sequence in the NPCR. The kappa statistic was used in order to assess the level of agreement among the results.RESULTS: Among the 67 patients, 6 and 5, respectively, were diagnosed with pulmonary and extrapulmonary tuberculosis, and the NPCR was positive in all of the cases. Among the 98 clinical specimens, smear microscopy, culture, and NPCR were positive in 6.00%, 8.16%, and 13.26%, respectively. Comparing the results of NPCR with those of cultures (the gold standard), we found that NPCR had a sensitivity and specificity of 100% and 83%, respectively, in pulmonary specimens, compared with 83% and 96%, respectively, in extrapulmonary specimens, with good concordance between the tests (kappa, 0.50 and 0.6867, respectively).CONCLUSIONS: Although NPCR proved to be a very useful tool for the detection of M. tuberculosis complex, clinical, epidemiological, and other laboratory data should also be considered in the diagnosis and treatment of pulmonary and extrapulmonary tuberculosis.

OBJETIVO: Estudar a ocorrência de micobactérias não-tuberculosas e a variabilidade das espécies isoladas na região atendida pelo Instituto Adolfo Lutz-Regional de São José do Rio Preto-no período entre 1996 e 2005, assim como mostrar a importância do diagnóstico laboratorial. MÉTODOS: A partir de amostras pulmonares e extrapulmonares, foi realizado o isolamento de micobactérias, e estas foram identificadas por métodos fenotípicos e pelo método molecular polymerase chain reaction-restriction enzyme analysis. RESULTADOS: Foram isoladas 317 cepas de micobactérias não-tuberculosas: complexo Mycobacterium avium, 182 (57,4%); M. gordonae, 33 (10,4%); M. fortuitum, 25(7,9%); M. chelonae, 8 (2,5%); complexo M. terrae, 8 (2,5%); M. kansasii, 7 (2,2%); e espécies menos freqüentes, 54 (17%). No período, foram caracterizados 72 casos (33,3%) de micobacterioses, de acordo com os critérios bacteriológicos estabelecidos pela American Thoracic Society (2007).Desses, complexo M. avium foi responsável por 56 casos, sendo que 29 (51,8%) foram caracterizados como doença disseminada. M. fortuitum foi responsável por 6 casos; M. gordonae, 3; M. chelonae, 2; M. abscessus, 1; M. kansasii, 1; M. intracellulare, 1; M. malmoense, 1; e Mycobacterium ssp., 1. CONCLUSÕES: Os resultados obtidos mostraram a importância do diagnóstico bacteriológico das micobacterioses, pois a identificação das espécies possibilita a introdução de um tratamento adequado precocemente.

OBJECTIVE: To study the incidence of nontuberculous mycobacteria and the range of species isolated between 1996 and 2005 at a regional branch of the Adolfo Lutz Institute-located in the city of São José do Rio Preto, Brazil-and to show the importance of laboratory testing. METHODS: Mycobacteria were isolated from pulmonary and extrapulmonary specimens and identified through phenotyping and molecular methods (polymerase chain reaction-restriction enzyme analysis). RESULTS: We isolated 317 nontuberculous mycobacterium strains: Mycobacterium avium complex, 182 (57.4%); M. gordonae, 33 (10.4%); M. fortuitum, 25 (7.9%); M. chelonae, 8 (2.5%); M. terrae complex, 8(2.5%); M.kansasii, 7 (2.2%); and less frequent species, 54 (17%). During this period, 72 cases (33.3%) were characterized as mycobacteriosis, according to bacteriological criteria established by the American Thoracic Society in 2007. Of those 72 cases, 56 were attributed to M.avium complex. Of those 56, 29 (51.8%) were characterized as disseminated disease. Six cases were attributed to M. fortuitum, 3 to M. gordonae, 2 to M. chelonae, 1 to M. abscessus, 1 to M. kansasii, 1 to M. intracellulare, 1 to M. malmoense and 1 to Mycobacterium ssp. CONCLUSIONS: These results show the importance of the bacteriological diagnosis, since identification of the species enables early and appropriate treatment.