Evaluation of cross-neutralizing immunity following COVID-19 primary series vaccination during the Omicron surge in Tanzania.

COVID-19 vaccine became available in Tanzania during the first wave of the Omicron variant. During that time community seroprevalence of SARS-CoV-2 was already at 50%-80%. To date, it remains largely unknown whether ongoing vaccination with the primary series vaccines has any meaningful immune-boosting effects against newer Omicron subvariants.

Deployment to Military Bases With Open Burn Pits and Respiratory and Cardiovascular Disease.

Importance: Many veterans who served in Afghanistan and Iraq during Operations Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF) were deployed to military bases with open burn pits and exposed to their emissions, with limited understanding of the long-term health consequences.

Objective: To determine the association between deployment to military bases where open burn pits were used for waste disposal and the subsequent risk of developing respiratory and cardiovascular diseases.

Design, Setting, And Participants: This retrospective observational cohort study used Veterans Health Administration medical records and declassified deployment records from the Department of Defense to assess Army and Air Force veterans who were deployed between 2001 and 2011 and subsequently received health care from the Veterans Health Administration, with follow-up through December 2020.

The Impact of ABAWD Time Limit Reinstatement on SNAP Participation and Employment.

Objective: Estimate the impact of the Supplemental Nutrition Assistance Program (SNAP) time limit for able-bodied adults without dependents (ABAWD) on SNAP participation, employment, and earnings.

Design: A quasi-experimental study using state administrative SNAP and earnings data to compare outcomes for SNAP participants before and after the time limit went into effect.

Participants: Supplemental Nutrition Assistance Program participants in the study cohorts in Colorado, Missouri, and Pennsylvania (N = 153,599).

Benefits of Multiple Sclerosis Adult Day Program Participation for People with Multiple Sclerosis: A Qualitative Study.

Background: Multiple sclerosis adult day programs (MSADPs) are nonmedical service programs that provide care and support to people with multiple sclerosis (MS) experiencing levels of impairment that interfere with employment and activities of daily living. The purpose of this study was to identify how program participants think MSADPs benefit them.

Methods: We conducted in-depth interviews with 95 people with MS who were MSADP participants.

Multiple Sclerosis Adult Day Programs and Health-Related Quality of Life of Persons with Multiple Sclerosis and Informal Caregivers.

Background: Multiple sclerosis adult day programs (MSADPs) offer life-enhancing services for individuals and informal caregivers affected by multiple sclerosis (MS), including medical care, rehabilitation therapies, nutrition therapy, cognitive training, tailored education, exercise programs, and social interaction. The purpose of this study was to examine the effects of MSADPs on health-related quality of life (HRQOL) and health care utilization of persons with MS and HRQOL and well-being of informal caregivers.

Methods: Using a quasi-experimental design, outcomes between baseline and 1-year follow-up in persons with MS and informal caregivers who used MSADP services and a comparison group of similar persons with MS and caregivers who did not use MSADP services were compared.

Genomic Analysis Identifies Novel Pseudomonas aeruginosa Resistance Genes under Selection during Inhaled Aztreonam Therapy .

Inhaled aztreonam is increasingly used for chronic suppression in patients with cystic fibrosis (CF), but the potential for that organism to evolve aztreonam resistance remains incompletely explored. Here, we performed genomic analysis of clonally related pre- and posttreatment CF clinical isolate pairs to identify genes that are under positive selection during aztreonam therapy We identified 16 frequently mutated genes associated with aztreonam resistance, the most prevalent being and , and 13 of which increased aztreonam resistance when introduced as single gene transposon mutants. Several previously implicated aztreonam resistance genes were found to be under positive selection in clinical isolates even in the absence of inhaled aztreonam exposure, indicating that other selective pressures in the cystic fibrosis airway can promote aztreonam resistance.

Burn Pit Emissions Exposure and Respiratory and Cardiovascular Conditions Among Airborne Hazards and Open Burn Pit Registry Participants.

Objective: The aim of this study was to determine how burn pit emissions exposure is associated with the incidence of respiratory and cardiovascular conditions.

Methods: We examined the associations between assumed geographic and self-reported burn pit emissions exposure and respiratory and cardiovascular outcomes in participants of the Airborne Hazards and Open Burn Pit Registry.

Results: We found significant dose-response associations for higher risk of self-reported emphysema, chronic bronchitis, or chronic obstructive pulmonary disease with increased days of deployment within 2 miles of selected burn pits (P-trend = 0.

Switching Schools: Reconsidering the Relationship Between School Mobility and High School Dropout.

Youth who switch schools are more likely to demonstrate a wide array of negative behavioral and educational outcomes, including dropping out of high school. However, whether switching schools actually puts youth at risk for dropout is uncertain, since youth who switch schools are similar to dropouts in their levels of prior school achievement and engagement, which suggests that switching schools may be part of the same long-term developmental process of disengagement that leads to dropping out. Using data from the National Longitudinal Survey of Youth 1997, this study uses propensity score matching to pair youth who switched high schools with similar youth who stayed in the same school.

The relationship between school engagement and delinquency in late childhood and early adolescence.

Engagement in school is crucial for academic success and school completion. Surprisingly little research has focused on the relationship between student engagement and delinquency. This study examines whether engagement predicts subsequent school and general misconduct among 4,890 inner-city Chicago elementary school students (mean age: 11 years and 4 months; 43.