The risk of neonatal respiratory distress increases in planned cesarean section (CS), due to elevated lung liquid resulting from the absence of labor. The knee-to-chest flexion (KCF) maneuver is a novel, low-resource technique intended to mimic the uterine contraction by flexing the newborn's legs against the chest to aid lung fluid expulsion. Although the maneuver has shown to be feasible and safe, its acceptability among healthcare providers is unknown. The study aimed to understand how healthcare providers perceive and accept the KCF intervention for preventing neonatal respiratory distress following planned CS.

The study used an exploratory qualitative approach, with semi-structured interviews at a tertiary referral hospital in Moshi, Tanzania. Fifteen interviews were conducted with obstetricians and resident doctors who had observed and/or performed the maneuver as part of an ongoing clinical trial which aims to test effectiveness of KCF maneuver in reducing newborn respiratory distress (ClinicalTrials.gov: NCT06270823). The data was first analyzed thematically using the Theoretical Framework of Acceptability as guidance, and later by inductive coding.

The KCF maneuver was generally viewed as acceptable, supported by its simplicity, compatibility with routine workflows, and observed clinical benefits, such as visible lung fluid expulsion. Its physiological rationale further contributed to clinicians' confidence in the procedure. However, acceptability remains closely tied to perceptions of effectiveness, with several providers awaiting trial results before they would endorse its use.

This study suggests that the KCF maneuver could be an acceptable intervention for improving newborn outcomes following planned CS, provided that efficacy is confirmed.

Complex tracheal anomalies are life threatening without intervention and often require surgery in the neonatal period to establish a stable airway. Variations of slide tracheoplasty using all autologous tissue are the gold standard in tracheal reconstruction. We have encountered 9 patients whose complex tracheal anomalies required significant variations to slide tracheoplasty. Six of these patients presented with bronchus suis with extreme long segment tracheobronchial stenosis which were effectively repaired using a side-to-side bronchus suis tracheobronchoplasty. This technique has the advantage of providing an all-autologous reconstruction with significantly less tension. Recently, we have encountered 3 patients with even more radical anatomies consisting of long segment tracheobronchial stenosis in the context of bilateral bronchus suis or Christmas-tree trachea. We employed bilateral side-to-side bronchus suis tracheoplasty in one and anterior-posterior bilateral bronchus suis tracheoplasty in the remaining 2 cases. These techniques have proven extremely effective in stabilizing the airway while preserving growth potential. Early management of these patients remains challenging, and complications are exponentially magnified by the interplay between complex cardiac physiology and complex tracheal reconstruction.

Respiratory syncytial virus (RSV) is a significant cause of respiratory infections in young children. Since 2021, RSV has been a notifiable disease in Australia. However, current surveillance systems focus on hospitalised RSV, with limited surveillance at a community level through primary care clinics. This approach only captures RSV requiring hospitalisation. Less severe illnesses, while not captured, may have significant social and economic impacts including the associated cost of care and absenteeism. The aim of this study is to establish an understanding of the broader burden of RSV in young children in a community setting.

The PATROL (Parents Actively Tracking RSV in Little Ones) project is a prospective longitudinal observational study of RSV and other respiratory viruses in children <5 years in community settings in metropolitan Perth, Western Australia. Over a 12-month surveillance period, parent/guardians will collect a mid-nasal swab from their child any time they meet the case definition or during one of the four screening points aligned with key points in the RSV season. Swabs will be tested for RSV and other respiratory viruses by PCR, with results returned to the parent/guardian. Rapid antigen tests for RSV, SARS-CoV-2 and Influenza A/B are provided for at-home testing in addition to PCR. Symptoms are reported by parents/guardians using MyCap, a phone-based application for REDCap.Incidence rates of RSV illness and asymptomatic carriage will be calculated and compared with the incidence rate ratios of other respiratory viruses.

The Government of Western Australia Child and Adolescent Health Service Human Research Ethics Committee approved all study materials. Results and findings will be disseminated through manuscripts, conference abstracts and presentations, participant newsletters and appropriate general news media items.

Accurately capturing social contact data is essential for developing effective mathematical models to forecast disease trends and evaluate interventions. There are limited population-based data of social contacts in the USA which limits our ability to accurately model infectious disease transmission.

To fill in this gap, we conducted a staggered longitudinal cohort study in metropolitan Atlanta, Georgia, USA. We aimed to characterise contact patterns and examine how they varied by (1) participant demographics, (2) seasonality and (3) self-managed and medically-attended symptoms. Once per month for 6 months, participants reported individual contacts they can name, individual contacts they cannot name and contacts that occurred in group settings. We defined individual contacts as a two-way conversation with five or more words in the physical presence of another person or physical skin-to-skin contact and group contacts as contacts with a group of people with whom participants talked, interacted or shared space. Participants were enrolled on a rolling basis, and data is collected from November 2024 through April 2026. Data analysis will generate age-specific contact matrices using individual contacts and compare contact rates by symptoms. We will also analyse the number and characteristics (eg, indoor/outdoor) of each type of contact. The contact matrices and results will be publicly available for the wider modelling community.

Kaiser Permanente Interregional Institutional Review Board (IRB) reviewed and approved all submitted study documents. An IRB Authorization Agreement was established with the Emory University IRB documenting the roles and responsibilities of each study site. On study completion, de-identified individual level contact data as well as contact matrices and analytical code will be made publicly available on GitHub/Zenodo platform. Study findings will be published in scientific journals and presented at conferences.

Seasonal influenza causes substantial illness and death in adults 50 years of age or older, even with current vaccines. An investigational messenger RNA (mRNA)-based vaccine called mRNA-1010 encodes hemagglutinin glycoproteins from World Health Organization-recommended influenza strains.

In this phase 3, double-blind, active-controlled trial, we randomly assigned adults 50 years of age or older to receive trivalent mRNA-1010 (37.5 μg, which includes 12.5 μg of each strain) or a licensed standard-dose comparator. The primary efficacy end point was relative vaccine efficacy against reverse-transcriptase-polymerase-chain-reaction (RT-PCR)-confirmed, protocol-defined influenza-like illness caused by influenza A or B, from at least 14 days after vaccination through the end of the influenza season. Hypothesis testing was conducted hierarchically to assess noninferiority (lower boundary of the 95% confidence interval [CI], >-10%), superiority (lower boundary of the 95% CI, >0%), and a higher level of superiority (lower boundary of the 95% CI, >9.1%).

A total of 40,703 participants received mRNA-1010 (20,350 participants) or the standard-dose comparator (20,353 participants); the median follow-up was 181 days (range, 1 to 227). RT-PCR-confirmed, protocol-defined influenza-like illness was observed in 411 of 20,179 recipients of mRNA-1010 (2.0%) and 557 of 20,124 recipients of the standard-dose comparator (2.8%), which corresponds to a relative vaccine efficacy of 26.6% (95% CI, 16.7 to 35.4), thereby meeting the criteria for noninferiority, superiority, and higher-level superiority. Solicited adverse reactions were more frequent with mRNA-1010 than with the standard-dose comparator (injection-site pain in 65.8% vs. 29.8%, fatigue in 45.1% vs. 20.3%, headache in 37.8% vs. 18.0%, and myalgia in 35.4% vs. 11.6%); most reactions were mild to moderate and transient. Serious adverse events were reported in 2.2% of the recipients of mRNA-1010 (with three events considered by the investigator to be vaccine-related) and in 1.9% of the recipients of the standard-dose comparator (with two events considered by the investigator to be vaccine-related).

In this trial, mRNA-1010 was superior to standard-dose licensed vaccines for prevention of RT-PCR-confirmed, protocol-defined influenza-like illness in adults 50 years of age or older. Solicited adverse reactions were more frequent with mRNA-1010. (Funded by Blackstone Life Sciences and Moderna; Fluent ClinicalTrials.gov number, NCT06602024.).

To analyze the monitoring of an intervention for expanding testing, isolation, quarantine, and telemonitoring of Covid-19 (TQT-Covid-Strategy) in an administrative health region of a municipality in Northeastern Brazil.

This is an evaluative study, whose object of analysis were data produced in the monitoring of a health intervention (TQT-Covid-Strategy), for six months, in 17 health units, namely 12 Family Health Units and five Health Centers. Monitoring matrices created through field reports, workshops with professionals and managers, and permanent education activities were analyzed. Monitoring took place in the three components of the TQT-Covid-Strategy intervention: expansion of accessibility to testing, monitoring of cases and surveillance strategies, and digital platform. The actions in each component were considered adequate (A), partially adequate (P), and inadequate (I) in relation to the activities determined in the action plan and in the protocol of the TQT-Covid-Strategy.

The component of the expansion of accessibility to testing was considered adequate, while the monitoring of cases and surveillance strategies presented partially adequate or inadequate results in many units. As for the digital platform component, there was predominantly adequate performance in relation to registration and access to test results and case reporting. However, the use of other surveillance-related resources, such as contact tracing, was inadequate.

Boosting the institutionalization of monitoring can be an important instrument for the implementation and improvement of health interventions. The regular presence of enablers and a widely disseminated protocol, in addition to community health agents, enhanced the intervention. However, partially adequate or inadequate results reinforced the importance of qualification of the work process in primary health care regarding surveillance actions and the use of information and communication technologies.

To analyze the demand creation strategies for Covid-19 testing and to describe surveillance indicators for testing, quarantine, contact tracing, and telemonitoring in primary health care services.

This cross-sectional study used data from the Covid-19 Testing, Isolation, Quarantine, and Telemonitoring (TQT Covid-19) study, conducted from July 2022 to July 2023. Primary healthcare service units in Rio de Janeiro and Salvador were selected to apply an intervention to develop demand creation strategies for testing uptake. Demand creation strategies were grouped into online strategies, traditional means, primary health care service units, community, and active search. Logistic regression was performed to determine the characteristics of the population reached by each strategy. The following Covid-19 surveillance indicators were estimated for testing and prevention (testing rate, positivity rate, monthly incidence, and full vaccination rate); for telemonitoring (monitoring rate, severity, referrals, and mortality); for quarantine (quarantine conditions); and for contact tracing (proportion of contacts traced and refusals of testing).

The intervention reached 12,401 individuals, and 11,843 tests were performed. Demand creation strategies that reached more individuals for testing were primary health care service units (37.0%) and active search (25.9%). The positivity rate during the study period was 27.2% in Salvador and 11.5% in Rio de Janeiro. A total of 14.1% of cases were monitored, and most were asymptomatic (42.5%) or mild (52.3%). No deaths were reported among monitored cases. The proportion of fully vaccinated individuals was 91.8%. Contact tracing identified 25.1% of reported contacts, and 41.5% declined testing.

The intervention facilitated expanded testing. Primary health care service units and active search were the strategies that reached more individuals for testing. Telemonitoring and contact tracing were the most challenging components to implement in primary health care services units and, given their importance, should be strengthened for future pandemics. These findings underscore the relevance of surveillance for assessing public health measures, identifying gaps, and supporting data-driven decision-making to improve epidemic management.

To analyze the perceptions of Primary Health Care (PHC) professionals regarding Covid-19 testing in basic health units (BHUs).

This qualitative study, part of a formative research project, involved 22 semi-structured interviews and 4 focus groups with professionals working in PHC in a Brazilian capital city. Among other criteria, the professional most directly involved in pandemic response measures in each BHU was selected. Content analysis was performed using a deductive analytical approach, in which the findings were organized into categories defined based on the components of the health system (population; infrastructure; organization of services; service delivery or care model; and management).

Reports commonly referred, in the population component, to the challenges arising from the limitations of PHC coverage; in the infrastructure component, the insufficiency of human resources and physical infrastructure was highlighted, which in turn required changes in the organization and provision of services, with repercussions on the care model. The contributions also revealed that at some points during the pandemic there was a disruption of the work process, especially in family health teams. In the management component, weaknesses in communication flows between the health secretariat and the BHU were identified, although this was less frequently mentioned.

The perception that expanding and decentralizing testing in BHUs was necessary was confirmed. The findings point to the importance of coordinating the pandemic response and effectively decentralizing the actions adopted, of preparedness plans and strengthening PHC and its professionals, as well as investments in infrastructure and team training, and advances in actions aimed at occupational health. The pandemic revealed the importance of advancing the health economic-industrial complex and, fundamentally, strengthening and defending the Brazilian Unified Health System.

To investigate factors associated with self-reported capacity to comply with home isolation after Covid-19 diagnosis in vulnerable communities in two Brazilian cities.

Cross-sectional study, with data from a study on the implementation of an intervention based on strategies of testing, isolation, quarantine, and telemonitoring (TQT) of Covid-19 in Primary Health Care in vulnerable neighborhoods (TQT Covid-19 Study). Demographic, socioeconomic, and behavioral data were used to perform descriptive and logistic regression analyses, aiming to evaluate the factors associated with home isolation capacity.

The sample consisted of 324 participants, most of them women (72.5%) and who self-reported to be Black or mixed-race (85.2%). Regarding level of education, 20.1% had up to elementary school degree; 42% had high school degree; and 37.9% had higher education or graduate degree. The density of people per room was high in 57.1% of households. In the multivariate analysis, high household density (≥ 0.5 residents/room) was significantly associated with reduced isolation capacity (ORa = 0.41; 95%CI 0.20-0.82). Other sociodemographic and behavioral variables, including age, sex, race/skin color, level of education, history of Covid-19 infection, access to health services, and preventive behaviors, did not present a statistically significant association.

According to the study, housing conditions, especially high household density, can be a determinant for adherence to home isolation. Thus, innovative prevention strategies should combine educational and structural actions that consider the household context of vulnerable families.

To explore factors associated with the use of chloroquine, hydroxychloroquine, and ivermectin for Covid-19 prevention in socioeconomically vulnerable populations in Brazil.

A cross-sectional study was conducted using data from the project "Expansion of testing, quarantine, digital health, and telemonitoring strategies to tackle the Covid-19 pandemic in Brazil." Participants were users of 19 primary healthcare units in Salvador (Bahia, BA) and Rio de Janeiro (Rio de Janeiro, RJ) from July 2022 to July 2023. Data were collected via a socioeconomic questionnaire and analyzed using logistic regression to assess factors associated with the use of chloroquine, hydroxychloroquine, or ivermectin for Covid-19 prevention. Multicollinearity was assessed using the generalized variance inflation factor (GVIF), with GVIF^(1/(2*df)) > 5 indicating potential collinearity. Sensitivity analyses were performed using the same backward selection procedure as the main model: excluding "sometimes" responses and stratifying analyses by city (Rio de Janeiro and Salvador).

Among 7,505 participants, 11.7% reported using chloroquine, hydroxychloroquine, or ivermectin for Covid-19 prevention. Use was more frequent among people who identified themselves as Brown (ORa = 1.38; 95%CI 1.10-1.75), aged 35-44 (ORa = 1.34; 95%CI 1.03-1.75) or 44-59 (ORa = 1.36; 95%CI 1.06-1.77), evangelical (ORa = 1.32; 95%CI 1.14-1.53), and with comorbidities (ORa = 1.25; 95%CI 1.07-1.47). Having up to two doses of Covid-19 vaccine (ORa = 1.30; 95%CI 1.06-1.59) and being unvaccinated while living with someone with comorbidities (ORa = 10.34; 95%CI 2.27-53.48) also increased the odds of use. GVIF values were low except for city (8.79), due to its interaction with income; the variable was retained for conceptual reasons. Sensitivity analyses yielded results consistent with the main model.

The use of ineffective medications for Covid-19 prevention was higher among specific demographic groups, reflecting inequalities in access to information and the influence of religious factors. Scientific communication and community engagement strategies remain essential to combat misinformation.