The impact of COVID-19 childhood and adolescent vaccination on mortality in Argentina.

INTRODUCTION: Argentina authorized COVID-19 vaccination for adolescents 12 years and older in August 2021, and then for children three years and older in October 2021. Children aged 6 months-2 years received a two-dose regimen beginning July 2022. OBJECTIVE: This study aims to analyze the impact of COVID-19 vaccination among children aged 0-17, considering vaccination status and mortality for the 2020-2022 period. METHODS: We conducted a population-level analysis examining all-cause mortality, COVID-19 cases, deaths, and vaccination records. We compared outcomes with child mortality for diseases for which vaccination is compulsory, before and after each vaccine rollout. RESULTS: A decrease in COVID-19-related deaths was observed in 2022 for pediatric age groups (3-11 and 12-17) with relatively higher vaccination coverage. However, no decrease was observed for the 0-2 year old age group, which had the longest delay in access to immunization and lowest vaccination coverage. When compared to unvaccinated populations in 2022, we observe an 8-15-fold reduction in cumulative death rates for pediatric populations vaccinated with 1 or more doses, and a 16-18-fold reduction for those vaccinated with 2 or more doses. Historical analysis shows that for diseases for which vaccination is now compulsory in many countries, pre-vaccine-rollout mortality was lower than COVID-19 deaths during 2020-2022. CONCLUSIONS AND RELEVANCE: SARS-CoV-2 immunization was associated with reduced COVID-19 deaths for children and adolescents in Argentina. Our findings suggest that greater efforts should be undertaken to ensure wider COVID-19 vaccine coverage in children and adolescents, especially infants.

The influence of political disagreements and corruption on state health leader turnover during the COVID-19 pandemic in Brazil.

PURPOSE: Governments faced formidable challenges in coordinating public health responses to the COVID-19 pandemic. This study aims to enhance the understanding of effective organizational leadership during crises by investigating the factors influencing the turnover of health leaders during the COVID-19 pandemic in Brazil. DESIGN/METHODOLOGY/APPROACH: Using primary data encompassing all appointments and dismissals of federal and state health secretaries, this paper conducted a quantitative analysis of the relational and reputational factors that contributed to leader turnover during the COVID-19 pandemic. This paper also examined whether leaders' management and public health experience increase the duration of tenure. FINDINGS: States encountered significant challenges in retaining experienced and effective leadership during the health emergency, primarily due to political conflicts in policymaking and, to a lesser extent, allegations of corruption. Furthermore, leaders with expertise in public health were found to be less likely to be removed from office. However, managerial experience did not prolong the tenure of state health secretaries during the emergency. RESEARCH LIMITATIONS/IMPLICATIONS: Since most health leaders have public health and management experience, the contributions of each factor to the duration of a secretary's tenure are difficult to separate and analyze separately. PRACTICAL IMPLICATIONS: This study provides empirical insights into what factors drive health leader turnover during major health emergencies. SOCIAL IMPLICATIONS: During major health emergencies, health leaders often strongly disagree with elected officials on the response. This paper test how crisis leadership theories help explain state health leaders' duration in one of the world's largest public health systems during the COVID-19 pandemic. This paper find that policy disagreements contributed to significant turnover. ORIGINALITY/VALUE: To the best of the authors' knowledge, this paper is the first that are aware of that uses novel primary data on public health executive leader characteristics and turnover causes in the context of the COVID-19 pandemic. It provides empirical evidence contributing to the crisis leadership literature by examining health leader turnover in one of the world's largest public health systems.

[Overview of long COVID in Brazil: a preliminary analysis of a survey to think about health policies]. / Panorama da COVID longa no Brasil: análise preliminar de um inquérito para pensar políticas de saúde.

Characterized by symptoms that remain or appear for the first time within three months of SARS-CoV-2 infection, long COVID can manifest itself in different ways, including in non-hospitalized or asymptomatic cases. Thus, this study offers an overview of long COVID in Brazil, especially of its diagnosis, symptoms, and challenges for new health management. Data from a study that investigated long COVID in people affected by COVID-19 were used. These original data stem from a survey with adult Brazilians (aged 18 years or older) who had COVID-19 that collected information from March 14 to April 14, 2022, by a questionnaire on social media. The questionnaire addressed sociodemographic characteristics, history of COVID-19 infections, vaccination against the disease, investigation of health status and quality of life before and after COVID-19, and search and access to treatment. Of the 1,728 respondents, 720 were considered eligible for analysis, of which 496 (69%) had long COVID. Individuals with long COVID reported clinical manifestations such as anxiety (80%), memory loss (78%), generalized pain (77%), lack of attention (75%), fatigue (73%), hair loss (71%), sleep changes (70%), mood swings (62%), malaise (60%), and joint pain (59%). Most sought health services during and after the acute phase of COVID-19 (94 and 80%, respectively), representing the need to structure the healthcare system for these patients.

Caracterizada por sintomas que permanecem ou aparecem pela primeira vez em até três meses após a infecção pelo SARS-CoV-2, a COVID longa pode se manifestar de diferentes formas, inclusive entre casos não hospitalizados ou assintomáticos. Nesse sentido, este artigo apresenta um panorama da COVID longa no Brasil, com ênfase no diagnóstico, nos sintomas e nos desafios para a nova gestão da saúde. Foram utilizados dados de um estudo realizado com objetivo de investigar a COVID longa em pessoas acometidas pela COVID-19, com dados originais de um inquérito com indivíduos brasileiros adultos (18 anos ou mais) que tiveram COVID-19, coletados entre 14 de março e 14 de abril de 2022, por meio de questionário divulgado em redes sociais. O questionário abordou características sociodemográficas, histórico de infecções por COVID-19, vacinação contra a doença, investigação da situação de saúde e da qualidade de vida antes e após a COVID-19, além da busca e acesso a tratamento. Dos 1.728 respondentes, 720 foram considerados elegíveis para a análise. Desses, 496 (69%) tiveram COVID longa. Os indivíduos com COVID longa reportaram manifestações clínicas como ansiedade (80%), perda de memória (78%), dor generalizada (77%), falta de atenção (75%), fadiga (73%), queda de cabelo (71%), alterações de sono (70%), alterações de humor (62%), indisposição (60%) e dor nas articulações (59%). A maioria procurou os serviços de saúde durante e após a fase aguda de COVID-19 (94% e 80%, respectivamente), o que representa a necessidade de estruturar o sistema de saúde para atender esses pacientes.

Caracterizado por síntomas que permanecen o aparecen por primera vez dentro de los tres meses posteriores a la infección por SARS-CoV-2, la COVID larga puede manifestarse de diferentes formas, incluso entre casos no hospitalizados o asintomáticos. En este sentido, este artículo presenta un panorama la COVID larga en Brasil, con énfasis en el diagnóstico, los síntomas y los desafíos para la nueva gestión de la salud. Se utilizaron datos de una encuesta realizada para investigar la COVID larga en personas afectadas por COVID-19. Se trata de datos originales de una encuesta con individuos brasileños adultos (18 años o más), que tuvieron COVID-19, con datos recolectados entre el 14 de marzo y el 14 de abril de 2022, por medio de un cuestionario divulgado en las redes sociales. El cuestionario abordó características sociodemográficas, historial de infecciones por COVID-19, vacunación contra la enfermedad, investigación de la situación de salud y de la calidad de vida antes y después de COVID-19, además de la búsqueda y acceso a tratamiento. De los 1.728 encuestados, 720 fueron considerados elegibles para el análisis. De ellos, 496 (69%) tenían COVID larga. Las personas con COVID larga informaron manifestaciones clínicas como ansiedad (80%), pérdida de memoria (78%), dolor generalizado (77%), falta de atención (75%), fatiga (73%), pérdida de cabello (71%), cambios en el sueño (70%), cambios de humor (62%), malestar (60%) y dolor en las articulaciones (59%). La mayoría recurrió a los servicios de salud durante y después de la fase aguda de COVID-19 (94% y 80%, respectivamente), lo que representa la necesidad de estructurar el sistema de salud para atender a estos pacientes.

The Brazilian vaccine divide: How some municipalities were left behind in the Covid-19 vaccine coverage.

This study aims to assess the progress of geographic, socioeconomic, and demographic disparities in Covid-19 vaccination coverage in Brazil over the first two years of the vaccination campaign. Data from the National Immunization Program Information System were used to estimate covid-19 vaccine coverage. Brazilian municipalities were divided into two groups based on their vaccine coverage for the booster dose. The first group comprised 20% of municipalities with the lowest coverage, while the second group (80% of municipalities) had higher coverage. The analysis was conducted separately for four age groups: 5-11, 12-17, 18-59, and 60+. Explanatory variables included socioeconomic and health services indicators. Crude and adjusted logistic regression models were used to estimate the probability of a municipality being among those with the worst vaccination coverage according to the categories of exploratory variables. Between January/2021 and December/2022, Brazil administered 448.2 million doses of the covid-19 vaccine. The booster vaccination coverage varied from 24.8% among adolescents to 79.7% among the elderly. The difference between the group with the highest and lowest coverage increased during the national vaccination campaign. Municipalities with lower education levels, higher proportion of Black population, higher Gini index, and worse health service indicators had a greater likelihood of having lower vaccination coverage. High and increasing levels of inequality in Covid-19 vaccination were observed in Brazil across all age groups during the vaccination campaign in 2021-2022.

An assessment of the public health surveillance strategy based on molecular testing during three major pandemic waves of COVID-19 in Brazil.

A national laboratory-based surveillance system was adapted to monitor the situation of SARS-CoV-2 in Brazil. The objective of the study was to compare the challenges in implementing COVID-19 surveillance strategies based on the Ministry of Health's (MoH) distribution of RT-PCR tests to different types of laboratories. This retrospective study analyzed the MoH's testing policies and distribution of RT-PCR tests to laboratories during the first, second, and third waves. Recipient laboratories were divided into groups: public health laboratories that belonged to the national network of public health laboratories (Group 1); public laboratories granted authorization during the pandemic (Group 2); and High-Capacity Testing Centers (Group 3). We analyzed the timing and duration of COVID-19 testing policies and the allocation of tests to laboratories by group and wave. Using t-tests, we analyzed the difference in the weekly average of tests distributed to labs by group and using Pearson's correlation coefficient, analyzed the test distribution according to infection and death rates. Between epiweek 9, 2020, and epiweek 22, 2022, the MoH distributed an average of 263,004 RT-PCR tests per week. The weekly average of tests distributed was highest in the second wave (310,327 tests), followed by the first (218,005 tests) and third waves (201,226 tests). There was a significant increase in the mean weekly tests distributed in the second wave compared to the first and third waves (p = 0.047; IC 8.29-1110.71). We found a significant difference between the weekly average of tests distributed in the first and second wave (p < 0.001; IC -209.83-76.20) to Group 2. Group 3 received the second-highest number of tests from the MoH overall, with a reduction during the third wave to first-wave levels. The distribution of RT-PCR tests was not correlated with the case and death incidence.

Uncovering inequities in Covid-19 vaccine coverage for adults and elderly in Brazil: A multilevel study of 2021-2022 data.

Vaccination is crucial for reducing severe COVID-19 cases, hospitalizations, and deaths. However, vaccine access disparities within countries, particularly in low- and middle-income nations, may leave disadvantaged regions and populations behind. This study aimed to investigate potential inequalities in vaccine coverage among Brazilian aged 18 years and older based on demographic, geographic, and socioeconomic characteristics at the municipal level. A total of 389 million vaccination records from the National Immunization Program Information System were analyzed to calculate vaccine coverage rates for the first, second, and booster doses among adults (18-59 years) and elderly (60 + years) vaccinated between January 2021 and December 2022. We analyzed the data by gender and used a three-level (municipalities, states, regions) multilevel regression analysis to assess the association between vaccine coverage and municipal characteristics. Vaccination coverage was higher among the elderly than among adults, particularly for the second and booster doses. Adult women showed higher coverage rates than men (ranging from 118 % to 25 % higher along the analyzed period). Significant inequalities were observed when analyzing the evolution of vaccination coverage by sociodemographic characteristics of municipalities. In the early stages of the vaccination campaign, municipalities with higher per capita Gross Domestic Product (pGDP), educational level, and fewer Black residents reached higher population coverages earlier. In December 2022, adult and elderly booster vaccine coverage was 43 % and 19 %, respectively, higher in municipalities in the highest quintile of educational level. Higher vaccine uptake was also observed in municipalities with fewer Black residents and higher pGDP. Municipalities accounted for most of the variance in vaccine coverage (59.7 %-90.4 % depending on the dose and age group). This study emphasizes the inadequate booster coverage and the presence of socioeconomic and demographic disparities in COVID-19 vaccination rates. These issues must be addressed through equitable interventions to avoid potential disparities in morbidity and mortality.

Early response to COVID-19 in Brazil: The impact of a targeted approach to suspected cases and on epidemiological surveillance efforts.

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) entered Brazil before travel restrictions and border closures were imposed. This study reports the characteristics of suspected and confirmed coronavirus disease 2019 (COVID-19) cases among symptomatic international travelers in Brazil and their contacts. Methods: The REDCap platform developed by the Brazilian Ministry of Health was analyzed to identify and investigate suspected cases of COVID-19 recorded during the period January 1 to March 20, 2020. The impact of Brazil's targeted approach to suspected cases from specific countries on epidemiological surveillance efforts during the early stages of the COVID-19 pandemic were analyzed. Results: Based on molecular RT-PCR tests, there were 217 (4.2%) confirmed, 1030 (20.1%) unconfirmed, 722 (14.1%) suspected, and 3157 (61.6%) non-investigated cases among travelers returning from countries included on the alert list for surveillance, as defined by the Ministry of Health. Among the 3372 travelers who went to countries not included on the alert list, there were 66 (2.0%) confirmed, 845 (25.3%) unconfirmed, 521 (15.6%) suspected, and 1914 (57.2%) non-investigated cases. A comparison of the characteristics of confirmed cases returning from alert and non-alert countries did not reveal a statistically significant difference in symptoms. Almost half of the hospitalized travelers with known travel dates and hospitalization status (53.6%) were inbound from countries not included on the alert list, and RT-PCR tests were reported for only 30.5%. Conclusions: Policies adopted at entry points to contain the introduction of SARS-CoV-2 in Brazil were not ideal. An analysis of the early response shows that surveillance of travelers, including testing strategies, data standards, and reporting systems, was insufficient.

Peace and health: exploring the nexus in the Americas.

The relationship between peace and health is complex, multifactorial and fraught with challenges of definitions, measurements and outcomes. This exploratory commentary on this nexus within a focus on the Americas posits this challenge clearly and calls for more scholarship and empirical work on this issue from an interdisciplinary perspective. The overall goal of this paper is to try and explore the elements that impact the relationship between peace and health with a focus on the Americas (defined as countries spanning from Canada to Argentina) in the post-Cold war period. Focusing on the 1990s and onwards, we seek to underscore why violence continues to permeate these societies despite a third and lasting wave of democratisation in the hemisphere. We hope this will allow a more robust dialogue on peace and health in the regional and global health literature.

Evaluation of the effectiveness of surveillance policies to control the COVID-19 pandemic in São Paulo, Brazil.

BACKGROUND: Surveillance efforts are essential to pandemic control, especially where the state is the primary health provider, such as Brazil. When public health testing guidelines limit molecular tests, there are reductions in detection efforts aimed at early recognition, isolation, and treatment of those infected with the virus. This study evaluates the effectiveness of surveillance policies to control the COVID-19 pandemic in São Paulo. METHODS: We conducted an interrupted time series analysis with a segmented regression model to analyze if changes in the state's guidelines improved RT-PCR testing outcomes in Brazil's most affluent and largest state, São Paulo. Anonymized daily data on the RT-PCR tests conducted in public laboratories belonging to the state-wide network from March 1, 2020 to June 5, 2021 were extracted from the Sao Paulo State open-source database, while the data on the genomic sequences were obtained from GISAID. We then aggregated these data for the 17 regional health departments in the state to evaluate regional-level outcomes. RESULTS: The public health system restricted RT-PCR testing to hospitalized cases in the first months. Testing was expanded to permit symptomatic testing of non-hospitalized persons only in July 2020, but a statistically significant increase in surveillance efforts was not observed. Case definition was expanded to allow case confirmation based on clinical, laboratory and image data criteria other than an RT-PCR test without increasing the testing effort for asymptomatic suspicious cases in September 2020. There was an increase in the mean volume of testing in each RHD, but the test positivity rate increased due to insufficient testing expansion. Results also show an uneven improvement in testing outcomes following these changes across the state's regional health departments. CONCLUSIONS: Evidence suggests that lower RT-PCR testing and genomic surveillance efforts are associated with areas characterized by a higher population concentration and a greater population reliance on the public health system. Our results highlight the need to structure health surveillance and information systems for disease control and prevention in emergency settings considering local demographics and vulnerabilities. In high prevalence settings, efforts at identifying and including vulnerable populations in routine and enhanced surveillance programs during COVID-19 must be significantly improved.

Guidance for Health Care Leaders During the Recovery Stage of the COVID-19 Pandemic: A Consensus Statement.

Importance: The COVID-19 pandemic is the greatest global test of health leadership of our generation. There is an urgent need to provide guidance for leaders at all levels during the unprecedented preresolution recovery stage. Objective: To create an evidence- and expertise-informed framework of leadership imperatives to serve as a resource to guide health and public health leaders during the postemergency stage of the pandemic. Evidence Review: A literature search in PubMed, MEDLINE, and Embase revealed 10 910 articles published between 2000 and 2021 that included the terms leadership and variations of emergency, crisis, disaster, pandemic, COVID-19, or public health. Using the Standards for Quality Improvement Reporting Excellence reporting guideline for consensus statement development, this assessment adopted a 6-round modified Delphi approach involving 32 expert coauthors from 17 countries who participated in creating and validating a framework outlining essential leadership imperatives. Findings: The 10 imperatives in the framework are: (1) acknowledge staff and celebrate successes; (2) provide support for staff well-being; (3) develop a clear understanding of the current local and global context, along with informed projections; (4) prepare for future emergencies (personnel, resources, protocols, contingency plans, coalitions, and training); (5) reassess priorities explicitly and regularly and provide purpose, meaning, and direction; (6) maximize team, organizational, and system performance and discuss enhancements; (7) manage the backlog of paused services and consider improvements while avoiding burnout and moral distress; (8) sustain learning, innovations, and collaborations, and imagine future possibilities; (9) provide regular communication and engender trust; and (10) in consultation with public health and fellow leaders, provide safety information and recommendations to government, other organizations, staff, and the community to improve equitable and integrated care and emergency preparedness systemwide. Conclusions and Relevance: Leaders who most effectively implement these imperatives are ideally positioned to address urgent needs and inequalities in health systems and to cocreate with their organizations a future that best serves stakeholders and communities.

Brazil in the face of new SARS-CoV-2 variants: emergencies and challenges in public health.

This article discusses the epidemic situation of Covid-19 in Brazil, in the face of the emergence of a new strain called P.1, which is more transmissible and may be associated with reinfection. Given the collapse of hospital care in Manaus in January 2021 and the results of three recent preprints, each that reports increased transmissibility of the P.1 variant, we propose some urgent measures. Genomic surveillance based on multi-step diagnostics, starting with RT-PCR type tests and up to sequencing, should be established. Efforts to identify reinfections associated with this variant and the update of its definition in protocols should be prioritized, and studies on the efficacy of currently available vaccines in Brazil concerning the new variant should be conducted. We also propose improving the Brazilian health surveillance system such that genomic surveillance is coordinated and thereby better able to respond to future emergencies in a more timely fashion. We call on the public agents involved in health surveillance to share data and information regarding the epidemic in a clear, fast and transparent way. Finally, we propose a greater engagement in inter-institutional cooperation of all those involved in the response and production of knowledge about the pandemic in our country.

Spatiotemporal pattern of COVID-19 spread in Brazil.

Brazil has been severely hit by COVID-19, with rapid spatial spread of both cases and deaths. We used daily data on reported cases and deaths to understand, measure, and compare the spatiotemporal pattern of the spread across municipalities. Indicators of clustering, trajectories, speed, and intensity of the movement of COVID-19 to interior areas, combined with indices of policy measures, show that although no single narrative explains the diversity in the spread, an overall failure of implementing prompt, coordinated, and equitable responses in a context of stark local inequalities fueled disease spread. This resulted in high and unequal infection and mortality burdens. With a current surge in cases and deaths and several variants of concern in circulation, failure to mitigate the spread could further aggravate the burden.