Clinical-laboratory characteristics predictive of COVID-19 severity: a prospective hospital cohort, in Pernambuco, Northeast Brazil.

OBJECTIVE: To describe the clinical-laboratory profile and analyze the factors associated with the severity of COVID-19. METHODS: A prospective cohort study involving patients with COVID-19 admitted to a tertiary hospital in Recife, Brazil. All cases were confirmed by RT-PCR and classified according to severity criteria. A descriptive statistical analysis of the population's characteristics was conducted. Risk factors associated with the outcome of the case according to severity were analyzed by calculating the odds ratio (OR) using the general equation estimation (GEE) model. RESULTS: Among the 75 cases included, 64% were female, and 62.7% were aged 65 years or older. The median length of stay was 9 days (6 - 14). Hypertension (65.3%) and Diabetes Mellitus (36%) were the most frequent comorbidities. Severe forms of COVID-19 constituted 41.3% of the sample. The factors associated with severity were a history of asthma (OR=4.58, 95%CI:1.13 - 18.7), report of anorexia (OR=1, 12, 95%CI:1.01-1.24), and laboratory changes that included elevated platelets (OR=1.00, 95% CI:1.00-1.01), elevated D'Dimer (OR=1, 26, 95% CI:1.04-1.52), elevated aspartate aminotransferase (OR=1.00, 95% CI:1.00-1.01), and gamma-glutamyl transferase (OR=1.22, IC95 %:0.98-1.51), hypernatremia (OR=1.31, 95%CI:1.12-1.52), and hyperkalemia (OR=1.21, 95% CI:1.04-1.41). CONCLUSION: Multisystemic involvement with a tendency for thrombophilia, electrolyte disturbances, and hepatic aggression, reflected by laboratory changes, were factors associated with the severity of COVID-19.

Democracy, citizenship and health in Brazil: challenges to strengthening the Unified Health System (SUS). / Democracia, cidadania e saúde no Brasil: desafios para o fortalecimento do Sistema Único de Saúde (SUS).

Relations among democracy, citizenship and health have shaped the Unified Health System (SUS) over the past four decades. Until 2016, democracy was strengthened and social rights extended, despite structural difficulties, conflicts between projects, and unevenly over time. The SUS has allowed advances in access and improvements to health conditions. Between 2016 and 2022, there were significant reversals in economic, social, and health policies. Since 2020, the situation has been aggravated by the multidimensional crisis associated with the COVID-19 pandemic. The work of the SUS, universities and public scientific institutions was fundamental in tackling the crisis. From 2023 onwards, Brazil has faced enormous challenges in restoring a democratic national project focused on social welfare. Strengthening the SUS depends on the character of social policies and democracy, and on transforming relations among State, market and society, to overcome constraints that have persisted even during progressive governments. The SUS, a universal policy rooted in a broad concept of health and democratic values, is fundamental to establishing a pattern of development aimed at reducing inequalities and building a more just society.

As relações entre democracia, cidadania e saúde permearam a conformação e a trajetória do Sistema Único de Saúde (SUS) nas últimas quatro décadas. Em que pesem dificuldades estruturais, conflitos entre projetos e diferenças entre momentos, até 2016 observou-se o fortalecimento da democracia e a expansão de direitos sociais. O SUS permitiu avanços no acesso e melhorias nas condições de saúde. Entre 2016 e 2022, os retrocessos nas políticas econômicas, sociais e de saúde foram expressivos. A situação foi agravada pela crise multidimensional associada à pandemia de COVID-19 a partir de 2020. A atuação do SUS, de universidades e de instituições científicas públicas foi fundamental para o enfrentamento da crise. A partir de 2023, os desafios de retomada de um projeto nacional democrático e voltado ao bem-estar social são imensos. O fortalecimento do SUS depende do caráter das políticas sociais e da democracia, e de transformações nas relações Estado-mercados-sociedade, para superar limites que persistiram mesmo durante governos progressistas. O SUS, como política universal ancorada em uma concepção ampla de saúde e em valores democráticos, é um pilar fundamental para a consolidação de um padrão de desenvolvimento orientado para a redução das desigualdades e a construção de uma sociedade mais justa.

Telecare in the Brazilian Unified Health System: where we are and where we are heading. / Teleassistência no Sistema Único de Saúde brasileiro: onde estamos e para onde vamos?

This article explores telecare from telehealth developments and the recent acceleration of the digital health transformation caused by the COVID-19 pandemic, focusing on the Brazilian Unified Health System (SUS). It addresses terminological issues, the scope of actions, the potential use for healthcare, and constraints and contingencies for telecare in Brazil, focusing on teleconsultations and interactions between health professionals and patients. Finally, it presents a set of propositions for the development of telecare policies and practices in Brazil, considering SUS principles, in two central themes: organizational political guidelines and operational propositions to organise services and healthcare delivery. The importance of clarifying the scope and limits of new technologies is highlighted in the attempt to avoid idealizations with proposed solutions to complex health problems. Telecare solutions should be compatible with SUS principles and with the recommended model of care, with the healthcare network coordinated and organised by primary care, ensuring access to health services and integrated and quality healthcare for the Brazilian society.

O artigo explora a teleassistência a partir dos desenvolvimentos da telessaúde e da aceleração da transformação digital na saúde provocada pela pandemia de COVID-19, com foco no Sistema Único de Saúde (SUS). Aborda questões terminológicas, escopo de ações, potencialidades do uso para atenção à saúde e condicionantes e contingências para a utilização da teleassistência no Brasil, concentrando-se nas teleconsultas e nas interações entre profissionais de saúde e pacientes. Por fim, apresenta um conjunto de proposições para o desenvolvimento das políticas e práticas de teleassistência no Brasil, tendo em vista os princípios do SUS, organizados em dois eixos estratégicos centrais: diretrizes político organizacionais e proposições operacionais e de organização dos serviços e do cuidado. Destaca-se a importância de ponderar e elucidar os alcances e os limites das novas tecnologias para evitar idealizações e deslumbramentos com suas propostas de solução para os complexos problemas de saúde. As soluções de teleassistência devem ser compatíveis com princípios e diretrizes do SUS e com o modelo de atenção preconizado, que prevê a organização da rede a partir da atenção primária, para garantir acesso, integralidade e qualidade da atenção à saúde para a sociedade brasileira.

The protective and destructive critical processes of female labor in small-scale fishing in coast Pernambuco, Brazil. / Processos críticos protetores e destrutivos no trabalho das pescadoras artesanais do litoral Pernambucano, Brasil.

This study aims to analyze the protective and destructive critical processes of 34 water women in the municipalities of Cabo de Santo de Agostinho and Ipojuca, Pernambuco, Brazil, from February/21 to August/22. The work process stages were systematized by the work flowchart, and we employed Breilh's critical processes matrix to organize the data. The destructive processes identified in the general domain were injustice and socio-environmental vulnerability, such as the economic development model, the Suape Industrial Port Complex, the 2019 oil spill crime disaster, the COVID-19 pandemic, and the difficult access to public policies; in the particular domain: overloads and extended working hours, use of rudimentary equipment and tools, and unequal gender, class, and race relationships; in the singular domain: physical and mental illnesses and deaths. The protective processes identified in the general domain were sustainable development objectives, public health, and social assistance policies; in the particular domain, group work and processing, consumption for subsistence; in the singular domain, fishing as a therapeutic, pleasurable, and sharing process. The study highlighted the central issues of the water women and the need to establish public policies targeting their care.

Objetivou-se analisar os processos críticos, protetores e destrutivos do trabalho de 34 mulheres das águas nos municípios de Cabo de Santo de Agostinho e Ipojuca (PE), de fevereiro de 2021 a agosto de 2022. As etapas do processo de trabalho foram sistematizadas pelo fluxograma do trabalho e organizadas na matriz de processos críticos de Breilh. Os processos destrutivos, no domínio geral, foram: injustiça e vulnerabilização socioambiental como modelo de desenvolvimento econômico, o Complexo Industrial Portuário de Suape, o desastre-crime de petróleo ocorrido em 2019, a pandemia de COVID-19 e dificuldade de acesso às políticas públicas; no particular: jornadas e sobrecargas de trabalho, uso de equipamentos e ferramentas rudimentares e relações desiguais de gênero, classe e raça; no singular: adoecimentos físicos, mentais e mortes. Os processos protetores, no domínio geral: os objetivos de desenvolvimento sustentável, políticas públicas de saúde e assistência social; no particular: trabalho e beneficiamento em grupo, consumo para subsistência; no singular: a pesca como processo terapêutico, prazeroso e de partilha. O estudo destacou os problemas centrais das mulheres das águas e a necessidade do estabelecimento de políticas públicas voltadas ao seu cuidado.

Solidarity as politics: Global Health and democracy. / Solidariedade como política: Saúde Global e democracia.

Ensuring democracy in establishing Global Health (GH) requires including health perspectives and actions of what is conventionally called "local". Edging closer to the references of the Meeting of Knowledges to those of Coloniality, we address the implementation of Solidary Greengrocers by the initiative of small-scale fishermen in the South of Bahia, Brazil, in facing socioeconomic and health issues related to the COVID-19 pandemic. The triangulation of methods characterized the fieldwork based on ethnography, action research, and partnership with local stakeholders in analyzing the material. The search for simultaneous health, socioeconomic, environmental, and educational effects allowed for overcoming the risks in GH actions such as humanitarianism, controlism, neoliberalism, and colonialism. The initiative was managed by the political organization of the residents of the reserve, who raised and managed State and civil society resources with autonomy and solidarity, combining traditional knowledge with institutional and technological knowledge of the territory. So-called local experiences contain a complete vision of the world that should not be submitted to a totalizing category. Global Health can benefit from considering the several worlds underlying its object.

Garantir a democracia na constituição do campo da Saúde Global (SG) requer a inclusão de perspectivas e ações sanitárias do que se convencionou chamar de "local". Aproximando os referenciais do Encontro de Saberes ao de Colonialidade, abordamos a implementação de Quitandas Solidárias por iniciativa de pescadores artesanais, no sul da Bahia, no enfrentamento de questões socioeconômicas e de saúde ligadas à pandemia de COVID-19. A triangulação de métodos caracterizou os trabalhos de campo, baseados na etnografia, pesquisa-ação e parceria com agentes locais na análise do material. A busca de efeitos simultaneamente sanitários, socioeconômicos, ambientais e educativos possibilitou relativa superação dos riscos presentes nas ações de SG como os de humanitarismo, controlismo, neoliberalismo e colonialismo. A iniciativa foi gerida pela organização política dos moradores da reserva, que captaram e manejaram recursos do Estado e da sociedade civil com autonomia e solidariedade, aliando os saberes tradicionais aos conhecimentos institucionais e tecnológicos do território. As experiências ditas locais contêm uma visão completa de mundo que não devem ser submetidas a uma categoria totalizante. A Saúde Global pode se beneficiar da consideração dos diversos mundos que constituem o seu objeto.

Impact of the COVID-19 Pandemic on Elective and Emergency Surgeries, and Postoperative Mortality in a Brazilian Metropolitan Area: A Time-Series Cohort Study.

Purpose: The COVID-19 pandemic posed a worldwide challenge, leading to radical changes in surgical services. The primary objective of the study was to assess the impact of COVID-19 on elective and emergency surgeries in a Brazilian metropolitan area. The secondary objective was to compare the postoperative hospital mortality before and during the pandemic. Patients and Methods: Time-series cohort study including data of all patients admitted for elective or emergency surgery at the hospitals in the Public Health System of Federal District, Brazil, between March 2018 and February 2022, using data extracted from the Hospital Information System of Brazilian Ministry of Health (SIH/DATASUS) on September 30, 2022. A causal impact analysis was used to evaluate the impact of COVID-19 on elective and emergency surgeries and hospital mortality. Results: There were 174,473 surgeries during the study period. There was a reduction in overall (absolute effect per week: -227.5; 95% CI: -307.0 to -149.0), elective (absolute effect per week: -170.9; 95% CI: -232.8 to -112.0), and emergency (absolute effect per week: -57.7; 95% CI: -87.5 to -27.7) surgeries during the COVID-19 period. Comparing the surgeries performed before and after the COVID-19 onset, there was an increase in emergency surgeries (53.0% vs 68.8%, P < 0.001) and no significant hospital length of stay (P = 0.112). The effect of the COVID-19 pandemic on postoperative hospital mortality was not statistically significant (absolute effect per week: 2.1, 95% CI: -0.01 to 4.2). Conclusion: Our study showed a reduction in elective and emergency surgeries during the COVID-19 pandemic, possibly due to disruptions in surgical services. These findings highlight that it is crucial to implement effective strategies to prevent the accumulation of surgical waiting lists in times of crisis and improve outcomes for surgical patients.

A particular epidemiological profile: disparities in access to contraceptive methods in Brazil during the SARS-CoV-2 (COVID-19) pandemic.

Our objective was to study disparities in access to contraception during the COVID-19 pandemic. We performed a cross-sectional study at the University of Campinas, Brazil using a Google questionnaire applied from December 2021 until February 2022, disseminated via snowball technique. The survey asked about sociodemographic characteristics and contraceptive use, as well as the demand for new methods and difficulties in continuing to use contraceptives during the COVID-19 pandemic. We analyzed 1018 completed questionnaires; in total, 742 (72.9%) were women aged between 20 and 39 years, 746 (73.3%) were White and 602 (59.2%) used contraceptives. During the COVID-19 pandemic, about 23% of respondents changed their method and approximately 20% of respondents looked for new methods. Among the latter, 31.3% reported some difficulty with obtaining guidance on new methods while only 5.3% of the respondents reported some difficulty with continuing their contraceptive. The main difficulty in both cases was the difficulty with getting a healthcare provider appointment. Our results point to a particular epidemiological population, of younger black and biracial women, with lower education and lower income, which suffered health disparities during the COVID-19 pandemic and found difficulties with using contraceptives and accessing family planning services.

Adherence to social distancing measures in southern Brazil, 2020/2021: a cross-sectional study.

OBJECTIVE: We aimed to analyze the frequency of adherence to social distancing and individual protection measures of adult and older populations in two cities in southern Brazil and to characterize the sociodemographic aspects of these individuals. METHODS: This cross-sectional, population-based study was conducted in the cities of Rio Grande, RS, and Criciúma, SC, Brazil. The outcome measure was the frequency of adherence to social distancing measures. Fisher's exact test (5% significance) was used to calculate the differences in prevalence according to exposure variables. RESULTS: Among the 2,170 participants over the age of 18, the prevalence of adherence to social distancing was 18.5%. Adherence was significantly higher among women; older adults; single, divorced, or widowed people with a low educational level; people of lower socioeconomic status; and people affected by multiple chronic diseases. CONCLUSION: Approximately one in five respondents adhered to measures of social distancing, and adherence was more prevalent among the risk groups.

Anxiety among children a year after the onset of the COVID-19 pandemic: a Brazilian cross-sectional online survey.

Aim: This study seeks to build upon a prior investigation into the impact of the COVID-19 pandemic and to evaluate the prevalence of anxiety among Brazilian children, along with its associated factors, one year after the commencement of the pandemic. Design: A cross-sectional study. Methods: A survey was conducted from April­May 2021 in Brazil. Children aged 6­12 and their guardians from five Brazilian regions were included. The Children's Anxiety Questionnaire (CAQ; scores 4­12) and Numerical Rating Scale (NRS; scores 0­10) were used to measure anxiety. Results: Of the 906 children, 53.3% were girls (average age = 8.79 ± 2.05 years). Mothers responded for 87.1% of the children, and 70.9% were from the Southeast region. Based on a CAQ score of ≥9 and an NRS score of ≥8, the anxiety prevalence was 24.9 and 34.9%, respectively. Using logistic regression, a CAQ ≥9 score was associated with older children and children with chronic disease or disability. An NRS score of ≥8 was associated with reduced family income during the pandemic, the person caring for the children, and with children with chronic disease or disability. Conclusion: These findings suggest the need to implement public health actions aimed at children with chronic diseases and disabilities and their parents to guide them regarding the warning signs and negative emotions. This study contributes to characterizing the evolution of the pandemic in Brazil and provides a basis for comparison with the literature from other countries.

Uncertainties experienced by nursing professionals who contracted Covid-19: a priori, everyone is human.

OBJECTIVE: To analyze the uncertainties experienced by nursing professionals who contracted COVID-19. METHODS: This qualitative research was conducted with 20 nursing professionals who fell ill from COVID-19. Data collection was carried out through semi-structured interviews; the data were then organized using thematic analysis and discussed in the context of Merle Mishel's Reconceptualized of Uncertainty in Illness Theory. RESULTS: The antecedents of the disease had a strong influence on how nursing professionals who contracted COVID-19 perceived uncertainty. The media coverage of the increasing number of cases, the collapse of the healthcare system, and the high mortality rate contributed to associating the disease with fear and panic. FINAL CONSIDERATIONS: Viewing it from the perspective of the disease's antecedents, the illness of a nursing professional from COVID-19 underscores that before being professionals, they are human beings just like anyone else, undergoing adversities and facing the possibilities associated with being ill.

Palliative Care for SARS-CoV-2 Patients in the Intensive Care Unit: A Comprehensive Study.

OBJECTIVE: To comprehend the multiprofessional actions regarding palliative care for patients in the Intensive Care Unit affected by SARS-CoV-2. METHODS: A comprehensive qualitative study conducted with 31 professionals from the Intensive Care Units of a university hospital, based on the Theory of Peaceful End of Life. RESULTS: The analysis of the discourse led to the identification of two categories: "Multidisciplinary actions to promote comfort at the end of life" and "Palliative care during the pandemic period and the promotion of emotional and spiritual comfort." FINAL CONSIDERATIONS: It became evident that local administration needs to invest in measures that reduce barriers to the implementation of palliative care during times of crisis. Understanding the discourse highlighted that non-specialized professionals can provide basic palliative care appropriately, without diminishing the importance and necessity of the presence of palliative care specialists in various hospital areas.

Quality of Care Transition for COVID-19 Patients in a University Hospital in Southern Brazil.

OBJECTIVE: To assess the quality of care transition from hospital to home for COVID-19 patients. METHOD: A cross-sectional study conducted at a University Hospital in Southern Brazil, involving 78 patients discharged after COVID-19 hospitalization. Data collection was performed via telephone using the Brazilian version of the Care Transitions Measure (CTM-15). Data were analyzed using descriptive and analytical statistics. RESULTS: The mean quality of care transition was 70.8 on a scale ranging from zero to 100, indicating moderate quality of care transition. The highest score was attributed to factor 1, "Preparation for self-management," and the lowest to factor 4, "Care Plan." CONCLUSIONS: It is important to enhance communication and support provided to patients during the transition process, especially regarding understanding prescribed medications and the development of clear care plans.

Quality of life at work for health professionals during the COVID-19 pandemic.

OBJECTIVE: to evaluate the quality of life at work of health professionals in direct and indirect care of COVID-19 cases. METHODS: this was a cross-sectional study with 156 health professionals from a referral hospital. The relationship between sociodemographic and work-related variables and perceived stress and domains of the Quality of Life at Work Scale was investigated using inferential statistics and regression. RESULTS: Satisfaction with Compassion was moderate (mean: 38.2), with low perception of stress, Burnout and Secondary Traumatic Stress (means: 18.8, 21.6 and 19.1). There were associations between: education, salary, multiple jobs and direct care with Compassion Satisfaction; low income, being a nurse and working overtime with Burnout; and working more than 12 hours, underlying disease and hospitalization for COVID-19 with Secondary Traumatic Stress. CONCLUSION: quality of life at work was satisfactory, despite the presence of Burnout and Secondary Traumatic Stress.

COVID-19 pandemic: what factors compromised the mental capacity to work of nursing technicians?

OBJECTIVES: to identify the factors that influenced the mental capacity to work of nursing technicians during the COVID-19 pandemic. METHODS: a cross-sectional study, carried out at two reference hospitals in assisting the population during the COVID-19 pandemic. A total of 237 professionals from Intensive Care Units participated and answered a questionnaire. Multiple linear regression models were used to assess the correlation between mental capacity to work and variables related to risks of contamination, institutional support and health. RESULTS: lack of COVID-19 tests, lack of knowledge of routine, absences in 2021 and mental illness contributed to worse mental capacity to work. Management embracement and physical capacity were considered protective factors. CONCLUSIONS: reduced work capacity in relation to mental demands can affect professional performance and quality of care, with implications for patients and health institutions.

The respiratory oxygenation index for identifying the risk of orotracheal intubation in COVID-19 patients receiving high-flow nasal cannula oxygen.

OBJECTIVE: To assess whether the respiratory oxygenation index (ROX index) measured after the start of high-flow nasal cannula oxygen therapy can help identify the need for intubation in patients with acute respiratory failure due to coronavirus disease 2019. METHODS: This retrospective, observational, multicenter study was conducted at the intensive care units of six Brazilian hospitals from March to December 2020. The primary outcome was the need for intubation up to 7 days after starting the high-flow nasal cannula. RESULTS: A total of 444 patients were included in the study, and 261 (58.7%) were subjected to intubation. An analysis of the area under the receiver operating characteristic curve (AUROC) showed that the ability to discriminate between successful and failed high-flow nasal cannula oxygen therapy within 7 days was greater for the ROX index measured at 24 hours (AUROC 0.80; 95%CI 0.76 - 0.84). The median interval between high-flow nasal cannula initiation and intubation was 24 hours (24 - 72), and the most accurate predictor of intubation obtained before 24 hours was the ROX index measured at 12 hours (AUROC 0.75; 95%CI 0.70 - 0.79). Kaplan-Meier curves revealed a greater probability of intubation within 7 days in patients with a ROX index ≤ 5.54 at 12 hours (hazard ratio 3.07; 95%CI 2.24 - 4.20) and ≤ 5.96 at 24 hours (hazard ratio 5.15; 95%CI 3.65 - 7.27). CONCLUSION: The ROX index can aid in the early identification of patients with acute respiratory failure due to COVID-19 who will progress to the failure of high-flow nasal cannula supportive therapy and the need for intubation.

Nursing leadership strategies in addressing COVID-19 in light of John Kotter's framework.

OBJECTIVE: To analyze the leadership strategies of nurses in university hospitals in response to care management changes during the COVID-19 pandemic, informed by John Kotter's insights. METHODS: This multicentric study utilized qualitative and analytical methods. It was conducted through semi-structured interviews with 139 lead nurses from 10 university hospitals in Brazil. Data analysis included Bardin's content analysis and the webQDA software. RESULTS: The primary category identified was "Nursing Leadership Strategies in the Battle Against COVID-19," encompassing five subcategories. This category underscored the importance of strategic vision in nursing leadership for combating COVID-19 within hospital settings, as well as the necessity of working collaboratively with their teams and other healthcare professionals. FINAL CONSIDERATIONS: The results highlight the strategies used by lead nurses in confronting COVID-19, which can be associated with John Kotter's theoretical framework and his model of change.

Child COVID-19 vaccine uptake among participants of the 2015 Pelotas (Brazil) Birth Cohort Study.

OBJECTIVE: To analyze COVID-19 vaccine uptake in children and to investigate factors associated with two outcomes variables: (a) not even beginning; (b) not completing the COVID-19 vaccine series. METHODS: We used data of children aged 6-7 years from the 2015 Pelotas c Birth Cohort Study. COVID-19 vaccination status was collected from immunization cards and National Immunization Program Information System. Adjusted analyses were performed using a hierarchical model to identify factors associated with the two study outcomes. RESULTS: Among 3867 children, 20.7 % (95 % CI, 19.5 %-22.0 %) did not even begin the 2-dose primary COVID-19 vaccine series, and 28.2 % (95 % CI, 26.6 %-29.8 %) did not complete the series with the second dose. Children not even beginning the COVID-19 vaccine series were more likely to have a White mother, not to have obesity, to have a history of COVID-19 infection, to have received non-recommended drugs for COVID-19, to be afraid of needles, and to have an incomplete diphtheria-tetanus-pertussis (DTP) and poliovirus immunization schedule. Not completing the 2-dose series was associated with lower maternal age and education, mother's self-identification as White or Brown, lower household income, lack of access to health services, not having completed the DTP and poliovirus immunization schedule and living with a person with a history of infection with COVID-19. CONCLUSION: The results highlight a vaccine-hesitant parents' group who chose not beginning the COVID-19 vaccine series of their children and, another group of parents who failure to complete the child's series due to difficulty accessing health services.

Sedentary behavior is associated with the mental health of university students during the Covid-19 pandemic, and not practicing physical activity accentuates its adverse effects: cross-sectional study.

BACKGROUND: Movement behaviours, such as sedentary behavior (SB) and physical inactivity, have become a public health issue due to their implications for physical and mental health. The literature indicates that the university environment influences the movement behaviors of university students, and the strategies adopted during the pandemic may have favored a decrease in the practice of physical activity and an increase in the time dedicated to SB in this population. We aimed to evaluate the association of SB and moderate to vigorous leisure-time physical activity (MVPA) with presence of symptoms of mental disorders during the COVID-19 pandemic. METHODS: This is a multicenter survey conducted with undergraduate students from eight Brazilian universities between October 2021 and February 2022 using an online questionnaire. The outcome variable was symptoms of anxiety and depression, assessed by the Depression, Anxiety, and Stress Scale-21. SB was assessed by total sitting time, being that individuals with ≥ 9 h/day were classified with high SB. The practice of MVPA was evaluated based on weekly frequency, duration, and type of exercise. Subsequently, the ratio between the time spent in MVPA (minutes/day) and the time spent in SB (hours/day) was calculated, being considered as cutoff point was the practice of 2.5 min of MVPA for each sedentary hour. To assess the association between the outcome and explanatory variables, multivariable logistic regression was performed. RESULTS: A total of 8,650 students participated in the study, with an average age of 23.9 years (SD: ± 6.34). In the multivariate analysis, the odds of anxiety symptoms [OR: 1.37 (95% CI: 1.24-1.50)] and depression [OR: 1.61 (95% CI: 1.47-1.77)] were higher in individuals with ≥ 9 h of SB per day. In the analysis of the relationship between MVPA and SB, not engaging in 2.5 min of MVPA per hour of SB increases the odds of anxiety symptoms [OR: 1.44 (95% CI: 1.31-1.58)] and depression [OR: 1.74 (95% CI: 1.59-1.92)]. CONCLUSION: The results suggest that SB is a risk factor associated with symptoms of anxiety and depression and that not engaging in MVPA exacerbates the negative effects of SB.

SARS-CoV-2 transmission in a highly vulnerable population of Brazil: a household cohort study.

Background: Household transmission studies seek to understand the transmission dynamics of a pathogen by estimating the risk of infection from household contacts and community exposures. We estimated within/extra-household SARS-CoV-2 infection risk and associated factors in a household cohort study in one of the most vulnerable neighbourhoods in Rio de Janeiro city. Methods: Individuals ≥1 years-old with suspected or confirmed COVID-19 in the past 30 days (index cases) and household members aged ≥1 year were enrolled and followed at 14 and 28 days (study period November/2020-December/2021). RT-PCR testing, COVID-19 symptoms, and SARS-CoV-2 serologies were ascertained in all visits. Chain binomial household transmission models were fitted using data from 2024 individuals (593 households). Findings: Extra-household infection risk was 74.2% (95% credible interval [CrI] 70.3-77.8), while within-household infection risk was 11.4% (95% CrI 5.7-17.2). Participants reporting having received two doses of a COVID-19 vaccine had lower extra-household (68.9%, 95% CrI 57.3-77.6) and within-household (4.1%, 95% CrI 0.4-16.6) infection risk. Within-household infection risk was higher among participants aged 10-19 years, from overcrowded households, and with low family income. Contrastingly, extra-household infection risk was higher among participants aged 20-29 years, unemployed, and public transportation users. Interpretation: Our study provides important insights into COVID-19 household/community transmission in a vulnerable population that resided in overcrowded households and who struggled to adhere to lockdown policies and social distancing measures. The high extra-household infection risk highlights the extreme social vulnerability of this population. Prioritising vaccination of the most socially vulnerable could protect these individuals and reduce widespread community transmission. Funding: Fundação Oswaldo Cruz, CNPq, FAPERJ, Royal Society, Instituto Serrapilheira, FAPESP.

The effect of previous SARS-CoV-2 infection on systemic immune responses in individuals with tuberculosis.

Background: The impact of previous SARS-CoV-2 infection on the systemic immune response during tuberculosis (TB) disease has not been explored. Methods: An observational, cross-sectional cohort was established to evaluate the systemic immune response in persons with pulmonary tuberculosis with or without previous SARS-CoV-2 infection. Those participants were recruited in an outpatient referral clinic in Rio de Janeiro, Brazil. TB was defined as a positive Xpert-MTB/RIF Ultra and/or a positive culture of Mycobacterium tuberculosis from sputum. Stored plasma was used to perform specific serology to identify previous SARS-CoV-2 infection (TB/Prex-SCoV-2 group) and confirm the non- infection of the tuberculosis group (TB group). Plasmatic cytokine/chemokine/growth factor profiling was performed using Luminex technology. Tuberculosis severity was assessed by clinical and laboratory parameters. Participants from TB group (4.55%) and TB/Prex-SCoV-2 (0.00%) received the complete COVID-19 vaccination. Results: Among 35 participants with pulmonary TB, 22 were classified as TB/Prex-SCoV-2. The parameters associated with TB severity, together with hematologic and biochemical data were similar between the TB and TB/Prex-SCoV-2 groups. Among the signs and symptoms, fever and dyspnea were significantly more frequent in the TB group than the TB/Prex-SCoV-2 group (p < 0,05). A signature based on lower amount of plasma EGF, G-CSF, GM-CSF, IFN-α2, IL-12(p70), IL-13, IL-15, IL-17, IL-1ß, IL-5, IL-7, and TNF-ß was observed in the TB/Prex-SCoV-2 group. In contrast, MIP-1ß was significantly higher in the TB/Prex-SCoV-2 group than the TB group. Conclusion: TB patients previously infected with SARS-CoV-2 had an immunomodulation that was associated with lower plasma concentrations of soluble factors associated with systemic inflammation. This signature was associated with a lower frequency of symptoms such as fever and dyspnea but did not reflect significant differences in TB severity parameters observed at baseline.