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It all started with the report from Shalby Hospital, Ahmedabad of two deaths with unusual presentation on Jan 18, 2011. Immediately investigations were carried out; to identify the etiological agent, source of outbreak, and mode of transmission, as well as, to propose a control measure based on the findings of the investigation. Extensive literature search, discussion with various scientific institutions, scientists and laboratory diagnosis suggested it to be case of Crimean-Congo Hemorrhagic Fever (CCHF). Accordingly a Case definition was worked out to further investigate the episode/outbreak. Door-to-door survey was carried out and hospital records were scrutinized. Collected data was analyzed in terms of time, place, and person. Laboratory investigation reports of case patients were also collated. We conducted environment investigation to find out the source of Infection. A total 13 case patients of CCHF were identified out of which 9 are positive for CCHF virus, 2 were negative for CCHF virus and in 2 instances, samples could not be taken because of early deaths of the cases. Among these 13 cases, 30.76% mortality rate was noted. Cases were reported in middle age group only. Environmental investigation also confirmed the presence of CCHF virus in Ticks. The outbreak was due to CCHF virus. State wide sero surveillance in animals is needed to identify prevalence of disease in Gujarat.
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Surtos de Doenças , Febre Hemorrágica da Crimeia/epidemiologia , Animais , Febre Hemorrágica da Crimeia/prevenção & controle , Febre Hemorrágica da Crimeia/transmissão , Humanos , Índia/epidemiologia , CarrapatosRESUMO
BACKGROUND: Private providers dominate health care in India and provide most tuberculosis (TB) care. Yet efforts to engage private providers were viewed as unsustainably expensive. Three private provider engagement pilots were implemented in Patna, Mumbai and Mehsana in 2014 based on the recommendations in the National Strategic Plan for TB Control, 2012-17. These pilots sought to improve diagnosis and treatment of TB and increase case notifications by offering free drugs and diagnostics for patients who sought care among private providers, and monetary incentives for providers in one of the pilots. As these pilots demonstrated much higher levels of effectiveness than previously documented, we sought to understand program implementation costs and predict costs for their national scale-up. METHODS AND FINDINGS: We developed a common cost structure across these three pilots comprising fixed and variable cost components. We conducted a retrospective, activity-based costing analysis using programmatic data and qualitative interviews with the respective program managers. We estimated the average recurring costs per TB case at different levels of program scale for the three pilots. We used these cost estimates to calculate the budget required for a national scale up of such pilots. The average cost per privately-notified TB case for Patna, Mumbai and Mehsana was estimated to be US$95, US$110 and US$50, respectively, in May 2016 when these pilots were estimated to cover 50%, 36% and 100% of the total private TB patients, respectively. For Patna and Mumbai pilots, the average cost per case at full scale, i.e. 100% coverage of private TB patients, was projected to be US$91 and US$101, respectively. In comparison, the national TB program's budget for 2015 averages out to $150 per notified TB case. The total annual additional budget for a national scale up of these pilots was estimated to be US$267 million. CONCLUSIONS: As India seeks to eliminate TB, extensive national engagement of private providers will be required. The cost per privately-notified TB case from these pilots is comparable to that already being spent by the public sector and to the projected cost per privately-notified TB case required to achieve national scale-up of these pilots. With additional funds expected to execute against national TB elimination commitments, the scale-up costs of these operationally viable and effective private provider engagement pilots are likely to be financially viable.
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Setor Privado/economia , Tuberculose/diagnóstico , Tuberculose/tratamento farmacológico , Análise Custo-Benefício , Gerenciamento Clínico , Humanos , Índia , Projetos Piloto , Avaliação de Programas e Projetos de Saúde , Setor Público , Estudos Retrospectivos , Tuberculose/economiaRESUMO
SETTING: Community based tuberculosis (TB) prevalence surveys in ten sites across India during 2006-2012. OBJECTIVE: To re-analyze data of recent sub-national surveys using uniform statistical methods and obtain a pooled national level estimate of prevalence of TB. METHODS: Individuals ≥15 years old were screened by interview for symptoms suggestive of Pulmonary TB (PTB) and history of anti-TB treatment; additional screening by chest radiography was undertaken in five sites. Two sputum specimens were examined by smear and culture among Screen-positives. Prevalence in each site was estimated after imputing missing values to correct for bias introduced by incompleteness of data. In five sites, prevalence was corrected for non-screening by radiography. Pooled prevalence of bacteriologically positive PTB was estimated using Random Effects Model after excluding data from one site. Overall prevalence of TB (all ages, all types) was estimated by adjusting for extra-pulmonary TB and Pediatric TB. RESULTS: Of 769290 individuals registered, 715989 were screened by interview and 294532 also by radiography. Sputum specimen were examined from 50 852 individuals. Estimated prevalence of smear positive, culture positive and bacteriologically positive PTB varied between 108.4-428.1, 147.9-429.8 and 170.8-528.4 per 100000 populations in different sites. Pooled estimate of prevalence of bacteriologically positive PTB was 350.0 (260.7, 439.0). Overall prevalence of TB was estimated at 300.7 (223.7-377.5) in 2009, the mid-year of surveys. Prevalence was significantly higher in rural compared to urban areas. CONCLUSION: TB burden continues to be high in India suggesting further strengthening of TB control activities.
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Programas de Rastreamento , Mycobacterium tuberculosis , População Rural , Tuberculose Pulmonar/epidemiologia , População Urbana , Adolescente , Adulto , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Tuberculose Pulmonar/microbiologiaRESUMO
OBJECTIVES: This study aimed to assess the coverage and explore enablers and challenges in implementation of direct benefit transfer (DBT) cash incentive scheme for patients with tuberculosis (TB). DESIGN: This is a mixed methods study comprising a quantitative cohort and descriptive qualitative study. SETTING: The study was conducted in City TB Centre, Vadodara, Western India. PARTICIPANTS: We used routinely collected data under the National TB Programme (NTP) on patients with TB notified between April and September 2018 and initiated on first-line anti-tuberculosis treatment (ATT) to assess the coverage of DBT. We interviewed NTP staff and patients to understand their perceptions. PRIMARY AND SECONDARY OUTCOME MEASURES: The study outcomes are receipt of DBT (primary), time to receipt of first instalment of DBT and treatment outcome. RESULTS: Among 1826 patients, 771 (42.2%) had received at least one instalment. Significantly more patients from the public sector had received DBT (at least one instalment) compared with those from private sector (adjusted relative risk (adjRR)=16.3; 95% CI 11.6 to 23.0). Among public sector patients, 7.3% (49/671) had received first instalment within 2 months of treatment initiation. Median (IQR) time to receipt of first instalment was 5.2 (3.4, 7.4) months. Treatment in private sector, residing outside city limits and being HIV non-reactive were significantly (p<0.001) associated with longer time to receipt. Timely and sufficient fund release, adequate manpower and adequate logistics in TB centre were the enablers. Inability of patients to open bank accounts due to lack of identity/residence proof, their reluctance to share personal information and inadequate support from private providers were the challenges identified in implementation. CONCLUSION: During the early phase of DBT implementation, the coverage was low and there were delays in benefit transfer. Facilitating opening of bank accounts for patients by NTP staff and better support from private providers may improve DBT coverage. Repeat assessment of DBT coverage after streamlining of implementation is recommended.
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Antituberculosos/uso terapêutico , Adesão à Medicação , Motivação , Tuberculose Pulmonar/tratamento farmacológico , Adolescente , Adulto , Idoso , Feminino , Humanos , Índia , Entrevistas como Assunto , Masculino , Adesão à Medicação/psicologia , Adesão à Medicação/estatística & dados numéricos , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Tuberculose Pulmonar/psicologia , Adulto JovemRESUMO
BACKGROUND: In the context of WHO's End TB strategy, there is a need to focus future control efforts on those interventions and innovations that would be most effective in accelerating declines in tuberculosis burden. Using a modelling approach to link the tuberculosis care cascade to transmission, we aimed to identify which improvements in the cascade would yield the greatest effect on incidence and mortality. METHODS: We engaged with national tuberculosis programmes in three country settings (India, Kenya, and Moldova) as illustrative examples of settings with a large private sector (India), a high HIV burden (Kenya), and a high burden of multidrug resistance (Moldova). We collated WHO country burden estimates, routine surveillance data, and tuberculosis prevalence surveys from 2011 (for India) and 2016 (for Kenya). Linking the tuberculosis care cascade to tuberculosis transmission using a mathematical model with Bayesian melding in each setting, we examined which cascade shortfalls would have the greatest effect on incidence and mortality, and how the cascade could be used to monitor future control efforts. FINDINGS: Modelling suggests that combined measures to strengthen the care cascade could reduce cumulative tuberculosis incidence by 38% (95% Bayesian credible intervals 27-43) in India, 31% (25-41) in Kenya, and 27% (17-41) in Moldova between 2018 and 2035. For both incidence and mortality, modelling suggests that the most important cascade losses are the proportion of patients visiting the private health-care sector in India, missed diagnosis in health-care settings in Kenya, and drug sensitivity testing in Moldova. In all settings, the most influential delay is the interval before a patient's first presentation for care. In future interventions, the proportion of individuals with tuberculosis who are on high-quality treatment could offer a more robust monitoring tool than routine notifications of tuberculosis. INTERPRETATION: Linked to transmission, the care cascade can be valuable, not only for improving patient outcomes but also in identifying and monitoring programmatic priorities to reduce tuberculosis incidence and mortality. FUNDING: US Agency for International Development, Stop TB Partnership, UK Medical Research Council, and Department for International Development.
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Prioridades em Saúde , Tuberculose Pulmonar/prevenção & controle , Teorema de Bayes , Efeitos Psicossociais da Doença , Humanos , Índia/epidemiologia , Quênia/epidemiologia , Modelos Estatísticos , Moldávia/epidemiologia , Vigilância da População , Prevalência , Tuberculose Pulmonar/epidemiologia , Tuberculose Pulmonar/mortalidadeRESUMO
BACKGROUND: Tuberculosis (TB) is first opportunistic infection and leading cause of death among human immunodeficiency virus (HIV)/AIDS. Certainly, the prevalence of TB is expected to differ between general population and HIV-infected persons. This study was conducted to determine the prevalence of TB among newly diagnosed HIV-infected adults attending antiretroviral therapy (ART) center in the state of Gujarat, India. MATERIALS AND METHODS: Cross-sectional study was carried out among newly diagnosed HIV-infected persons attending ART center from July 2012 to September 2012. Screening of TB symptoms and chest X-ray was done for those who consented. Sputum samples were collected for microscopy with Ziehl-Neelsen method for all presumptive TB cases and those diagnosed as pulmonary TB, culture, and drug susceptibility test was done. Blood samples were collected for CD4+ T-cells count and hemoglobin. RESULTS: Out of 2021 eligible HIV-infected persons, 63.5% were males and 68.2% were in the age group of 26-45 years. The prevalence of TB was 17.8%. Among 360 patients with TB, 102 (28%) had smear positive TB, 86 (24%) had smear-negative TB, and 172 (48%) were diagnosed as extrapulmonary TB. Two hundred and thirty-eight (27%) TB patients with CD4+ T-Cell count below 200 compared to 122 (11%) patients above 200. CONCLUSION: A high prevalence of TB was found among newly diagnosed HIV-infected adults attending ART center for care and treatment. The prevalence of pulmonary and extrapulmonary TB was almost equal. Chances of TB disease were more with depletion of CD4 counts. The study highlights urgent need of intensive case finding as well as periodic screening of newly diagnosed HIV-infected individuals.
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CONTEXT: Facility Based Newborn Care (FBNC) is a key strategy to improve child survival, especially in newborn care where neonatal mortality rate (NMR) is stagnant in declining. Gujarat has achieved considerable amount of reduction in child deaths, but neonatal health requires attention. The study was aimed to assess the admission pattern of Special Newborn Care Units (SNCUs) which supports decision-making. SETTINGS AND DESIGN: A cross-sectional descriptive analysis was done from secondary data of the SNCU reports on the aspects of admission patterns, morbidity, and mortality pattern. The reports had been analyzed on various critical variables. RESULTS: In 2015-2016, Gujarat has operationalized forty SNCUs by saturating each district with at least one SNCU. The study found near proportions of (53%) inborn - (47%) outborn admission and 44% admission of female. Out of 69,662 admissions, 67% were discharged, 16% died, 10% leaving against medical advice, and 7% referred to higher centers. Major reasons for admission were respiratory distress syndrome (RDS) (22%) and infection (21%). Similar pattern in mortality found as final diagnosis of deaths was RDS (23%) and infection (21%). The proportion of neonatal deaths in outborn was high compared to inborn. CONCLUSION: Strengthening of FBNC is essential to address neonatal mortality. NMR is of prime focus because the health interventions needed to tackle NMR differ from those needed for infant mortality rate and under-five mortality rate. This accentuates the need for focused attention on facility- and community-based child health interventions along with quality maternal health services and robust referral mechanisms to all delivery points.
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Background: Reducing delay in the diagnosis of multidrug-resistant tuberculosis (MDR-TB) by performing genotypic drug susceptibility testing (DST) among eligible patients as early as possible can improve clinical presentation and treatment outcomes and reduce transmission. We aimed to determine the delay from being eligible for DST to performing DST and factors associated with the delay. Methods: This was a retrospective cohort study involving record review among presumptive MDR-TB patients who underwent genotypic DST from five selected districts in the state of Gujarat, India (2014). Specimens were couriered from the designated microscopy centres (DMCs) to two designated genotypic DST facilities located outside the districts. Results: Of 2212 patients, the median duration from eligibility to the specimen being sent, from the specimen being sent to DST and from eligibility to DST was 3, 5 and 8 d, respectively. Patients from DMCs in teaching hospitals and with presumptive MDR-TB criteria 'follow-up smear positive' and 'TB-human immunodeficiency virus co-infection' had a significantly higher risk of delay between eligibility and testing (≥8 d). The delay in the specimen being sent after eligibility contributed to high delays in these subgroups. Conclusion: The districts were doing well in implementing timely DST among presumptive MDR-TB patients. However, there is room for improvement in reducing the delays in the sending of specimens among certain patient subgroups.
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Antituberculosos/uso terapêutico , Testes de Sensibilidade Microbiana , Tuberculose Resistente a Múltiplos Medicamentos/diagnóstico , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Adolescente , Adulto , Diagnóstico Precoce , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde , Estudos Retrospectivos , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Tuberculose Resistente a Múltiplos Medicamentos/fisiopatologia , Adulto JovemRESUMO
X-band EPR spectroscopy has been employed to study the dynamic properties of magnetically aligned phospholipid bilayers (bicelles) utilizing a variety of phosphocholine spin labels (n-PCSL) as a function of cholesterol content. The utilization of both perpendicular and parallel aligned bicelles in EPR spectroscopy provides a more detailed structural and orientational picture of the phospholipid bilayers. The magnetically aligned EPR spectra of the bicelles and the hyperfine splitting values reveal that the addition of cholesterol increases the phase transition temperature and alignment temperature of the DMPC/DHPC bicelles. The corresponding molecular order parameter, Smol, of the DMPC/DHPC bicelles increased upon addition of cholesterol. Cholesterol also decreased the rotational motion and increased the degree of anisotropy in the interior region of the bicelles. This report reveals that the dynamic properties of DMPC/DHPC bicelles agree well with other model membrane systems and that the magnetically aligned bicelles are an excellent model membrane system.
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Colesterol/química , Bicamadas Lipídicas/química , Magnetismo , Fosfolipídeos/química , Fosforilcolina/química , Marcadores de Spin , Dimiristoilfosfatidilcolina/química , Espectroscopia de Ressonância de Spin Eletrônica , Éteres Fosfolipídicos/química , Temperatura de TransiçãoRESUMO
BACKGROUND: The World Health Organization recommends direct observation of treatment (DOT) to support patients with tuberculosis (TB) and to ensure treatment completion. As per national programme guidelines in India, a DOT provider can be anyone who is acceptable and accessible to the patient and accountable to the health system, except a family member. This poses challenges among children with TB who may be more comfortable receiving medicines from their parents or family members than from unfamiliar DOT providers. We conducted a non-inferiority trial to assess the effect of family DOT on treatment success rates among children with newly diagnosed TB registered for treatment during June-September 2012. METHODS: We randomly assigned all districts (n = 30) in Gujarat to the intervention (n = 15) or usual-practice group (n = 15). Adult family members in the intervention districts were given the choice to become their child's DOT provider. DOT was provided by a non-family member in the usual-practice districts. Using routinely collected clinic-based TB treatment cards, we compared treatment success rates (cured and treatment completed) between the two groups and the non-inferiority limit was kept at 5%. RESULTS: Of 624 children with newly diagnosed TB, 359 (58%) were from intervention districts and 265 (42%) were from usual-practice districts. The two groups were similar with respect to baseline characteristics including age, sex, type of TB, and initial body weight. The treatment success rates were 344 (95.8%) and 247 (93.2%) (p = 0.11) among the intervention and usual-practice groups respectively. CONCLUSION: DOT provided by a family member is not inferior to DOT provided by a non-family member among new TB cases in children and can attain international targets for treatment success. TRIAL REGISTRATION: Clinical Trials Registry-India, National Institute of Medical Statistics (Indian Council of Medical Research) CTRI/2015/09/006229.
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Terapia Diretamente Observada/métodos , Família , Tuberculose/tratamento farmacológico , Adolescente , Antituberculosos/uso terapêutico , Criança , Pré-Escolar , Terapia Diretamente Observada/psicologia , Feminino , Humanos , Índia , Lactente , Masculino , Aceitação pelo Paciente de Cuidados de Saúde , Resultado do TratamentoRESUMO
BACKGROUND: Line probe assay (LPA) is used for first-line drug susceptibility testing (DST) of smear-positive pulmonary tuberculosis (TB) patients. For extra-pulmonary (EP) and smear-negative TB patients, the samples are inoculated in culture and isolates of Mycobacterium tuberculosis (MTB) are tested on LPA. This results in considerable delay and loses the benefit of rapid diagnostics. In the present study, smear-positive EP specimens were tested directly on LPA and their results were compared with LPA conducted on culture isolates of same specimens. METHOD: All EP specimens received from different parts of Gujarat State in 2014 were subjected to ZN smear microscopy and inoculated on liquid culture. Smear-positive samples were directly tested with LPA. Simultaneously, culture isolates of MTB were also subjected to LPA. Results of LPA conducted on both direct specimen and culture isolates were compared. RESULT: Of 391 extra-pulmonary specimens, 177 were smear positive and tested directly on LPA. Simultaneously, 88 were culture positive and their isolates were tested on LPA. With LPA on direct specimen, 127 (32%) had valid results with median time to diagnose rifampicin resistance of 5 days (IQR 2-7). In comparison, 88 (23%) specimens had valid results with culture isolates tested on LPA and with longer turnaround time (18-40 days). Among 51 samples, with valid LPA results both on direct samples and isolates, 50 (98%) had concordance for drug resistance pattern. CONCLUSION: There is advantage in testing extra-pulmonary smear-positive samples directly on LPA and the results would also be available rapidly.
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Técnicas de Genotipagem/métodos , Mycobacterium/genética , Tuberculose Resistente a Múltiplos Medicamentos/diagnóstico , Adolescente , Adulto , Antituberculosos/uso terapêutico , Técnicas Bacteriológicas , Estudos Transversais , Feminino , Humanos , Índia , Masculino , Microscopia , Pessoa de Meia-Idade , Mycobacterium/isolamento & purificação , Rifampina/uso terapêutico , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Adulto JovemRESUMO
BACKGROUND: The 5As approach is a clinic-based approach and has been developed for primary health care providers who are uniquely positioned to interact with tobacco users. The 5As stands for: Ask about tobacco use at every visit, advise tobacco users to quit, assess readiness to quit, assist quit attempts through counseling and pharmacotherapy and arrange follow-up to prevent relapse. The present study explores whether auxiliary nurse midwives (ANMs) adhere to the 3As from the recommended 5As model for tobacco cessation. MATERIALS AND METHODS: The study was a cross-sectional study conducted among 501 ANMs in the state of Gujarat and Andhra Pradesh. Descriptive analysis and chi-square test were employed to test the differences in knowledge levels and practices of ANMs. Bivariate logistic regression was used to examine the association between each predictor variable separately and the outcome variables after adjusting for age and location. Data was analyzed using SPSS version 17 software. RESULTS: Majority of ANMs reported that they were aware of respiratory illnesses, tuberculosis, lung and oral cancer as conditions caused due to tobacco consumption. Awareness of adverse reproductive and child health effects associated with tobacco use was very low. Only about one third of respondents informed all patients about harmful effects. Only 16% of ANMs reported having ever received any on-job training related to tobacco control. ANMs who reported receiving training in tobacco control were about two times more likely to provide information on health effects of tobacco as compared to those who reported not being trained in tobacco control in the state of Gujarat. CONCLUSIONS: A majority of ANMs ask patients about tobacco use but provide advice only to patients suffering from specific diseases. A context-specific capacity building package needs to be designed to equip ANMs in recommended 5As approach in tobacco cessation.
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AIM: To compare air nicotine levels in public places in Ahmedabad, India, before (June 2008) and after (January, 2010) the implementation of a comprehensive smoking ban which was introduced in October 2008. MATERIALS AND METHODS: Air nicotine concentrations were measured by sampling of vapor-phase nicotine using passive monitors. In 2008 (baseline), monitors were placed for 5-7 working days in 5 hospitals, 10 restaurants, 5 schools, 5 government buildings, and 10 entertainment venues, of which 6 were hookah bars. In 2010 (follow-up), monitors were placed in 35 similar venues for the same duration. RESULTS: Comparison of the overall median nicotine concentration at baseline (2008) (0.06 µg/m(3) Interquartile range (IQR): 0.02-0.22) to that of follow-up (2010) (0.03 µg/m(3) IQR: 0.00-0.13), reflects a significant decline (% decline = 39.7, P = 0.012) in exposure to second-hand smoke (SHS). The percent change in exposure varied by venue-type. The most significant decrease occurred in hospitals, from 0.04 µg/m(3) at baseline to concentrations under the limit of detection at follow-up (%decline = 100, P < 0.001). In entertainment venues, government offices, and restaurants, decreases in SHS exposure also appeared evident. However, in hookah bars, air nicotine levels appeared to increase (P = 0.160). CONCLUSION: Overall, SHS exposure was significantly reduced in public places after the smoke-free legislation came into force. However, nicotine concentrations were still detected in most of the venues indicating imperfect compliance with the comprehensive ban.
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BACKGROUND: Revised National TB Control Programme (RNTCP) in India recommends that all previously-treated TB (PT) patients are offered drug susceptibility testing (DST) at diagnosis, using rapid diagnostics and screened out for rifampicin resistance before being treated with standardized, eight-month, retreatment regimen. This is intended to improve the early diagnosis of rifampicin resistance and its appropriate management and improve the treatment outcomes among the rest of the patients. In this state-wide study from Gujarat, India, we assess proportion of PT patients underwent rapid DST at diagnosis and the impact of this intervention on their treatment outcomes. METHODS: This is a retrospective cohort study involving review of electronic patient-records maintained routinely under RNTCP. All PT patients registered for treatment in Gujarat during January-June 2013 were included. Information on DST and treatment outcomes were extracted from 'presumptive DR-TB patient register' and TB treatment register respectively. We performed a multivariate analysis to assess if getting tested is independently associated with unfavourable outcomes (death, loss-to-follow-up, failure, transfer out). RESULTS: Of 5,829 PT patients, 5306(91%) were tested for drug susceptibility with rapid diagnostics. Overall, 71% (4,113) TB patients were successfully treated - 72% among tested versus 60% among non-tested. Patients who did not get tested at diagnosis had a 34% higher risk of unsuccessful outcomes as compared to those who got tested (aRR - 1.34; 95% CI 1.20-1.50) after adjusting for age, sex, HIV status and type of TB. Unfavourable outcomes (particularly failure and switched to category IV) were higher among INH-resistant patients (39%) as compared to INH-sensitive (29%). CONCLUSION: Offering DST at diagnosis improved the treatment outcomes among PT patients. However, even among tested, treatment outcomes remained suboptimal and were related to INH resistance and high loss-to-follow-up. These need to be addressed urgently for further progress.
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Antituberculosos/uso terapêutico , Farmacorresistência Bacteriana , Mycobacterium tuberculosis/efeitos dos fármacos , Rifampina/uso terapêutico , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Tuberculose Pulmonar/tratamento farmacológico , Adolescente , Adulto , Antituberculosos/farmacologia , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Rifampina/farmacologia , Resultado do Tratamento , Tuberculose Resistente a Múltiplos Medicamentos/diagnóstico , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Tuberculose Pulmonar/diagnóstico , Tuberculose Pulmonar/epidemiologia , Adulto JovemRESUMO
This is the first time (2)H solid-state NMR spectroscopy and spin-labeled EPR spectroscopy have been utilized to probe the structural orientation and dynamics of a stearic acid incorporated into magnetically aligned phospholipid bilayers or bicelles. The data gleaned from the two different techniques provide a more complete description of the bilayer membrane system. Both methods provided similar qualitative information on the phospholipid bilayer, high order, and low motion for the hydrocarbon segment close to the carboxyl groups of the stearic acid and less order and more rapid motion at the end towards the terminal methyl groups. However, the segmental order parameters differed markedly due to the different orientations that the nitroxide and C-D bond axes transform with the various stearic acid acyl chain conformations, and because of the difference in dynamic sensitivity between NMR and EPR over the timescales examined. 5-, 7-, 12-, and 16-doxylstearic acids spin-labels were used in the EPR experiments and stearic acid-d(35) was used in the solid-state NMR experiments. The influence of the addition of cholesterol and the variation of temperature on the fatty acid hydrocarbon chain ordering in the DMPC/DHPC phospholipid bilayers was also studied. Cholesterol increased the degree of ordering of the hydrocarbon chains. Conversely, as the temperature of the magnetically aligned phospholipid bilayers increased, the order parameters decreased due to the higher random motion of the acyl chain of the stearic acid. The results indicate that magnetically aligned phospholipid bilayers are an excellent model membrane system and can be used for both NMR and EPR studies.
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Dimiristoilfosfatidilcolina/química , Espectroscopia de Ressonância de Spin Eletrônica/métodos , Ácidos Graxos/química , Bicamadas Lipídicas/química , Espectroscopia de Ressonância Magnética/métodos , Magnetismo , Éteres Fosfolipídicos/química , Substâncias Macromoleculares , Fluidez de Membrana , Conformação Molecular , Fosfolipídeos/química , TemperaturaRESUMO
Newly synthesised Ru(bp)2(sq)(+)-derivatives, covalently linked to a porphyrin-core, show very high epsilon values in the NIR region; which exhibit fast on/off switching depending on the redox state of the coordinated dioxolene functionality.
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Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne viral disease that causes a fatal hemorrhagic illness in humans. This disease is asymptomatic in animals. CCHF was first confirmed in a nosocomial outbreak in 2011 in Gujarat State. Another notifiable outbreak occurred in July, 2013, in Karyana Village, Amreli district, Gujarat State. Anti-CCHF virus (CCHFV) immunoglobulin G (IgG) antibodies were detected in domestic animals from the adjoining villages of the affected area, indicating a considerable amount of positivity against domestic animals. The present serosurvey was carried out to determine the prevalence of CCHFV among bovine, sheep, and goat populations from 15 districts of Gujarat State, India. A total of 1226 serum samples from domestic animals were screened for IgG antibodies using a CCHF animal IgG enzyme-linked immunosorbent assay (ELISA) kit from the Centers for Disease Control and Prevention. Antibodies were detected in all the 15 districts surveyed; with positivity of 12.09%, 41.21%, and 33.62% in bovine, sheep, and goat respectively. This necessitates the surveillance of CCHFV IgG antibodies in animals and hemorrhagic fever cases in human.
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Anticorpos Antivirais/sangue , Vírus da Febre Hemorrágica da Crimeia-Congo/imunologia , Febre Hemorrágica da Crimeia/veterinária , Imunoglobulina G/sangue , Animais , Animais Domésticos , Búfalos , Bovinos , Estudos Transversais , Surtos de Doenças/veterinária , Reservatórios de Doenças , Ensaio de Imunoadsorção Enzimática/veterinária , Cabras , Vírus da Febre Hemorrágica da Crimeia-Congo/isolamento & purificação , Febre Hemorrágica da Crimeia/epidemiologia , Febre Hemorrágica da Crimeia/virologia , Humanos , Índia/epidemiologia , RNA Viral/genética , Estudos Soroepidemiológicos , Ovinos , Carrapatos/virologia , ZoonosesRESUMO
BACKGROUND: There is an enormous health burden caused by the co-prevalence of tuberculosis (TB) and tobacco use in India. This intervention study was undertaken in district Vadodara, Gujarat, India to promote tobacco cessation by integrating 'brief advice' for tobacco cessation in TB patients who were tobacco users and registered for treatment under TB control programme, based on the tested strategies advocated by World Health Organization (WHO) and the International Union against Tuberculosis and Lung Diseases (The Union). MATERIALS AND METHODS: Brief advice for tobacco cessation based on five A's, advocated by the WHO and the UNION was incorporated into the on-going TB Control programme in India in the year 2010. The tools were developed for education, training and capturing data. All the registered TB patients receiving directly observed treatment short-course (DOTS) who used tobacco in any form were offered brief advice during routine interaction for treatment. RESULTS: A total of 46.3% of TB patients, predominantly males (89.6% males and 10.3% females) were current users of tobacco; 39.1% used smokeless tobacco, 35.9% were smokers and 25% were dual users, that is, smoked as well as used smokeless tobacco. At the end of treatment, of the 67.3% patients who were offered brief advice, quit tobacco use, 18.2% re-lapsed while 14.5% were lost to follow-up. CONCLUSION: A significant numbers of TB patients use tobacco with adverse impact on TB control programmes. Our study shows that it is feasible to introduce 'brief advice' strategy as a cost effective intervention for tobacco cessation among TB patients with careful monitoring.
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OBJECTIVE: On-site evaluation of laboratories with standard checklist is a first step to promote effective and consistent supervision. The present study was carried out to evaluate the impact of the RNTCP- Intermediate Reference Laboratory External Quality Assessment- On-Site Evaluation visits on quality of sputum smear microscopy services of Gujarat, India. Data of three IRL-EQA-OSE visit rounds, carried out between January 2005 and December 2010 are presented here. MATERIAL AND METHODS: Within the Revised National Tuberculosis Control Programme EQA framework, the IRL, Ahmedabad visited all Gujarat District Tuberculosis Centres, and evaluated their sputum smear microscopy services. The study covered a cohort of 29 DTCs during each of the three IRL-EQA-OSE visits. The authors focused on section III of Annexure A to study and analyse the said impact. In order to convert qualitative data into quantitative one, the authors denoted a score of 1 to "Acceptable" (No Error) remark and 0 to "Not-Acceptable" (Error) one. RESULTS: A larger degree of improvement was noted in Standard Operating Procedure practices, Disinfection practices, and Internal Quality Control practices. Many DTCs did not retrain their laboratory staff in EQA methodology. The Gujarat DTCs achieved an overall score of (820/957) 86% during the initial OSE visits which consistently improved to (842/957) 88% and (885/957) 92% during the two follow-up OSE visits along with sustenance and improvement in many important laboratory parameters. CONCLUSION: The co-sponsoring organisation (IRL) recognises the challenges and therefore, is committed to supporting state-level implementation of EQA through additional training, technical assistance to districts, and improving this technical guidance. By periodic IRL-EQA-OSE visits, sputum smear microscopy services can be sustained and improved at field level.
Assuntos
Técnicas Bacteriológicas/normas , Laboratórios/normas , Ensaio de Proficiência Laboratorial/métodos , Microscopia/normas , Controle de Qualidade , Escarro/microbiologia , Tuberculose Pulmonar/diagnóstico , Lista de Checagem , Humanos , Índia , Controle de Infecções/normas , Tuberculose Pulmonar/microbiologiaRESUMO
Tobacco smoking and exposure to secondhand tobacco smoke are associated with disability and premature mortality in low and middle-income countries. The aim of this study was to assess the cost-effectiveness of implementing India's Prohibition of Smoking in Public Places Rules in the state of Gujarat, compared to implementation of a complete smoking ban. Using standard cost-effectiveness analysis methods, the cost of implementing the alternatives was evaluated against the years of life saved and cases of acute myocardial infarction averted by reductions in smoking prevalence and secondhand smoke exposure. After one year, it is estimated that a complete smoking ban in Gujarat would avert 17,000 additional heart attacks and gain 438,000 life years (LY). A complete ban is highly cost-effective when key variables including legislation effectiveness were varied in the sensitivity analyses. Without including medical treatment costs averted, the cost-effectiveness ratio ranges from $2 to $112 per LY gained and $37 to $386 per acute myocardial infarction averted. Implementing a complete smoking ban would be a cost saving alternative to the current partial legislation in terms of reducing tobacco-attributable disease in Gujarat.