Publications by authors named "Anna C C Carvalho"

Article Synopsis
  • Tuberculosis (TB) is the leading cause of death from infectious diseases globally, and the COVID-19 pandemic worsened TB detection and treatment efforts, reversing progress made prior to 2019.
  • Despite these setbacks, research and development of new TB vaccines continue, aiming for affordable options to be available within the next five years for vulnerable populations.
  • The discussion focuses on the main vaccines being developed against TB, including potential candidates from Brazil that are advancing towards widespread availability.
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Background: PPE 59, which is absent from bacillus Calmette Guérin (BCG) strains, seems to induce a humoral immune response in patients with tuberculosis (TB). Additional studies are needed to better evaluate this protein in immune response to tuberculosis.

Objectives: To evaluate the response of antibodies to PPE59 in TB individuals, its combination with IgG response to other, previously tested mycobacterial antigens (Ag) and with sputum smear microbiology (SM) results.

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Background: The high burden of drug-resistant tuberculosis (TB) is a problem to achieve the goals of the End TB Strategy by 2035. Whether isoniazid monoresistance (Hr) affects anti-TB treatment (ATT) outcomes remains unknown in high-burden countries.

Methods: We evaluated determinants of ATT outcome among pulmonary TB cases reported to the National Notifiable Disease Information System (SINAN) between June 2015 and June 2019, according to drug sensitivity testing (DST) results.

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Chagas disease (CD) is caused by the flagellate protozoan . It is endemic in Latin America. Nowadays around 6 million people are affected worldwide, and 75 million are still at risk.

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Article Synopsis
  • Tuberculosis (TB) continues to be a significant health issue worldwide, and people affected by TB often experience anemia.
  • A study conducted in Brazil found that out of 786patients with pulmonary TB, 56% were anemic, with moderate to severe anemia linked to a higher risk of unfavorable outcomes, including death.
  • The findings suggest that moderate/severe anemia is a crucial risk factor for mortality in TB patients and highlights the need for close monitoring of these individuals during treatment.
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Objective: To analyze the association of dysglycemia with clinical, laboratory, and radiographic characteristics of patients with pulmonary tuberculosis (PTB), as well as with their tuberculosis treatment outcomes.

Methods: This was a longitudinal study involving 140 patients diagnosed with PTB (positive cultures for Mycobacterium tuberculosis or positive Xpert MTB/RIF results from sputum samples). Patients were evaluated at diagnosis (M0), after completing the second month of treatment (M2), and at the end of treatment (MEND).

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Article Synopsis
  • BCG vaccines are widely administered to children, yet their effectiveness in preventing tuberculosis (TB) and mortality, especially in older populations, is still debated.
  • The study conducts a systematic review and meta-analysis of existing data from TB contact studies to evaluate the impact of BCG vaccination on TB development and mortality, focusing on age-specific effects.
  • A total of 14,927 records were found in the search for eligible studies published between 1998 and 2018, shaping the analysis of both prevalent and incident TB cases among vaccinated individuals.
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For over 60 years, selenium (Se) has been known as an essential microelement to many biological functions, including cardiovascular homeostasis. This review presents a compilation of studies conducted in the past 20 years related to chronic Chagas disease cardiomyopathy (CCC), caused by infection, a neglected disease that represents a global burden, especially in Latin America. Experimental and clinical data indicate that Se may be used as a complementary therapy to prevent heart failure and improve heart function.

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Over the past 15 years, and despite many difficulties, significant progress has been made to advance child and adolescent tuberculosis (TB) care. Despite increasing availability of safe and effective treatment and prevention options, TB remains a global health priority as a major cause of child and adolescent morbidity and mortality-over one and a half million children and adolescents develop TB each year. A history of the global public health perspective on child and adolescent TB is followed by 12 narratives detailing challenges and progress in 19 TB endemic low and middle-income countries.

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Background: Dysglycemia (i.e., prediabetes or diabetes) in patients with tuberculosis (PWTB) is associated with increased odds of mortality and treatment failure.

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Tuberculosis (TB) does not respect borders, and migration confounds global TB control and elimination. Systematic screening of immigrants from TB high burden settings and-to a lesser degree TB infection (TBI)-is recommended in most countries with a low incidence of TB. The aim of the study was to evaluate the views of a diverse group of international health professionals on TB management among migrants.

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Background: It is unclear whether diabetes or prediabetes affects unfavorable treatment outcomes and death in people with tuberculosis (PWTB).

Methods: Culture-confirmed, drug-susceptible PWTB, enrolled in the Regional Prospective Observational Research in Tuberculosis (RePORT)-Brazil cohort between 2015 and 2019 (N = 643) were stratified based on glycemic status according to baseline glycated hemoglobin. Unfavorable tuberculosis (TB) outcome was defined as treatment failure or modification, recurrence, or death; favorable outcome was cure or treatment completion.

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Background: Chagas disease (caused by infection) evolves to chronic chagasic cardiomyopathy (CCC) affecting 1.8 million people worldwide. This is the first randomized, placebo-controlled, double-blinded, clinical trial designed to estimate efficacy and safety of selenium (Se) treatment in CCC.

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Background: Neutrophils have been associated with lung tissue damage in many diseases, including tuberculosis (TB). Whether neutrophil count can serve as a predictor of adverse treatment outcomes is unknown.

Methods: We prospectively assessed 936 patients (172 HIV-seropositive) with culture-confirmed pulmonary TB, enrolled in a multicenter prospective cohort study from different regions in Brazil, from June 2015 to June 2019, and were followed up to two years.

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The epidemiological relevance of tuberculosis is directly related to the socioeconomic profile of a given country. Vulnerability to tuberculosis is influenced by biological factors (e.g.

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The aim of this study was to evaluate the concordance between two versions of the scoring system (2011 and 2019), recommended by the Brazilian Ministry of Health, for the diagnosis of pulmonary tuberculosis (PTB) in children and adolescents. A retrospective descriptive study was performed to assess the medical records of children and adolescents with PTB, in TB units from Brazilian cities located in Rio de Janeiro, Minas Gerais, and Parana States, from January 1 st , 2004, to December 1 st , 2018. Patients aged 0 to 18 years old with a diagnosis of PTB were included.

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Aim: To evaluate the clinical characteristics, diagnostic approach, and treatment outcomes of tuberculosis (TB) in children living in a high-burden metropolitan area.

Methods: This was a retrospective study, based on a medical chart review, involving children under 15 years old treated for TB between 2007 and 2016, in four primary health units (PHU) and three reference centers (RC) in five cities of Rio de Janeiro metropolitan area. Factors associated with TB treatment setting, microbiological diagnosis, and treatment outcomes were evaluated.

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Introduction: In March 2020, the rapid increase in COVID-19 cases overburdened the Italian health system, with the country becoming the pandemic's epicenter.

Methods: We present a narrative review based on manuscripts, official documents, and newspaper articles regarding COVID-19 in Italy.

Results: Characteristics of the epidemic, possible causes for its worsening, and the measures adopted across Italian regions are presented.

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Unlabelled: Several studies evaluating clinical forms of chronic Chagas disease show that about one-third of patients present cardiac involvement. Heart failure, sudden death and cardioembolic stroke are the main mechanisms of death in Chagas heart disease. The impact of specific etiologic treatment on the prognosis of patients with chronic Chagas heart disease is very limited regardless of the presence or absence of heart failure.

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Tuberculosis (TB) still represents a major public health issue in spite of the significant impact of the efforts made by the World Health Organization (WHO) and partners to improve its control. In 2014 WHO launched a new global strategy (End TB) with a vision of a world free of TB, and a 2035 goal of TB elimination (defined as less than one incident case per million). The aim of this article is to summarise the theoretical bases of the End TB Strategy and to analyse progresses and persistent obstacles on the way to TB elimination.

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