In 2019, the National School Lunch Program and School Breakfast Program served approximately 15 million breakfasts and 30 million lunches daily at low or no cost to students. Access to these meals has been disrupted as a result of long-term school closures related to the COVID-19 pandemic, potentially decreasing both student nutrient intake and household food security. By the week of March 23, 2020, all states had mandated statewide school closures as a result of the pandemic, and the number of weekly missed breakfasts and lunches served at school reached a peak of approximately 169.6 million; this weekly estimate remained steady through the final week of April. We highlight strategies that states and school districts are using to replace these missed meals, including a case study from Maryland and the US Department of Agriculture waivers that, in many cases, have introduced flexibility to allow for innovation. Also, we explore lessons learned from the pandemic with the goal of informing and strengthening future school nutrition policies for out-of-school time, such as over the summer. (Am J Public Health. Published online ahead of print September 17, 2020: e1–e9. https://doi.org/10.2105/AJPH.2020.305875 )

The school environment plays an important role in children’s diets and overall health, and policies for universal free school meals have the potential to contribute to positive child health outcomes. This systematic review evaluates studies examining the association between universal free school meals and students’ school meal participation rates, diets, attendance, academic performance, and Body Mass Index (BMI), as well as school finances. The search was conducted in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA). A search for studies published in economically developed countries published through December 2020 was performed in PubMed, Education Resources Information Center (ERIC), Thomson Reuters’ Web of Science, and Academic Search Ultimate, followed by examining the references in the resultant literature. A total of 47 studies were identified and the Newcastle-Ottawa Scale (NOS) was applied to assess bias. Nearly all studies examining universal free school meals found positive associations with school meal participation. Most studies examining universal free school meals that included free lunch found positive associations with diet quality, food security, and academic performance; however, the findings of studies examining only universal free breakfast were mixed. Research findings were similarly mixed when examining attendance as an outcome. Concerns about adverse outcomes on student BMI were not supported by the literature; in fact, several studies detected a potentially protective effect of universal free school meals on BMI. Research examining the impact of universal free meals on school finances was limited, but suggest that lower-income school districts in the U.S. may have positive financial outcomes from participation in universal free school meal provisions. Additionally, providing free meals to students may be associated with improved household incomes, particularly among lower-income families with children. Further research is needed to examine the financial implications of universal free meals for both school districts and families. Overall, universal free school meals may have multiple benefits for students and countries should consider universal free school meal provisions with strong nutrition guidelines. (PROSPERO registration: CRD42020221782).

In the United States (US), recreational cannabis use is on the rise. Since 2011, 11 states and the District of Columbia have legalized cannabis for adult recreational use. As additional states consider legalizing, there is an urgent need to assess associations between recreational cannabis legalization and maternal use in the preconception, prenatal, and postpartum periods—all critical windows for maternal and child health. Using cross-sectional data from the 2016 Pregnancy Risk Assessment Monitoring System, we assessed associations between state cannabis legalization and self-reported maternal cannabis use. Using logistic regression, we estimated the adjusted prevalence ratio (PR) of cannabis use during the preconception, prenatal, and postpartum period for women delivering a live-born infant in three states that had legalized recreational cannabis (Alaska, Colorado, and Washington) and three states that had not legalized (Maine, Michigan, and New Hampshire) by 2016. Our final sample size was 7258 women. We utilized 95% confidence intervals (CI) and a significance level of alpha = 0.05. After adjustment for potential confounders, women who resided in states with legalized recreational cannabis were significantly more likely to use cannabis during the preconception (PR 1.52; 95%CI ranging from 1.28–1.80; p < 0.001), prenatal (PR 2.21; 95% CI ranging from 1.67–2.94; p < 0.001), and postpartum (PR 1.73; 95%CI ranging from 1.30–2.30; p < 0.001) periods, compared to women who resided in states without legalized recreational cannabis. Although evidence about the effect of marijuana use during these periods is nascent, these findings show potential for increased incidence of child exposure to cannabis. Longitudinal research is needed to assess immediate and sustained impacts of maternal use before and after state legalization of recreational cannabis.

Objective: To conduct a nationwide assessment of child nutrition administrative agencies' responses to meal service provision during coronavirus disease 2019−related school closures. Design: Systematic coding of government websites (February−May 2020) regarding school meal provision in all 50 US states and the District of Columbia, 5 US territories, and the US Department of Interior Bureau of Indian Education. Participants: All US jurisdictions (N = 57). Variables Measured: Seven coding criteria were established to assess the strengths and weaknesses of jurisdictions' responses derived from emergency declarations, school closure announcements, and government websites on emergency school meals. Analysis: Descriptive analyses. Results: Most jurisdictions mentioned school meal provisions in school closure announcements (76.4%), provided easily interpretable information and/or maps about meal sites (57.9%), and included detailed information about school meal provisions in their coronavirus disease 2019 landing webpages (n = 26, 51%). Fewer provided updated and comprehensive implementation guidance (39.3%), referenced school closures in emergency declarations (37.5%), had clear communication/outreach to families (21.4%), or partnered with antihunger organizations (11.6%). Conclusions and Implications: Understanding initial jurisdictions' approaches are critical to current and future emergency planning during school closures and reopening to help address food insecurity better, limit disease transmission, and prevent health disparities, particularly among at-risk populations.

BackgroundActive play and physical activity are important for preventing childhood obesity, building healthy bones and muscles, reducing anxiety and stress, and increasing self-esteem. Unfortunately, safe and accessible play places are often lacking in under-resourced communities. Play Streets (temporary closure of streets) are an understudied intervention that provide safe places for children, adolescents, and their families to actively play. This systematic review examines how Play Streets impact opportunities for children and adolescents to engage in safe active play and physical activity, and for communities and neighborhoods. Methods for evaluating Play Streets were also examined.MethodsA systematic literature review was conducted in Academic Search Complete, CINHAL, PsycINFO, PubMED, Web of Science, and Google Scholar. Peer-reviewed intervention studies published worldwide were included if they were published in English, through December 2017 and documented free-to-access Play Streets or other temporary spaces that incorporated a designated area for children and/or adolescents to engage in active play. Systematic data extraction documented sample, implementation, and measurement characteristics and outcomes.ResultsOf 180 reviewed abstracts, 6 studies met inclusion criteria. Studies were conducted in five different countries (n = 2 in U.S.), using mostly cross-sectional study designs (n = 4). Physical activity outcomes were measured in half of the studies; one used observational and self-report measures, and two used device-based and self-report measures. In general, Play Streets provided safe places for child play, increased sense of community, and when measured, data suggest increased physical activity overall and during Play Streets.ConclusionsPlay Streets can create safe places for children to actively play, with promise of increasing physical activity and strengthening community. Given the popularity of Play Streets and the potential impact for active play, physical activity, and community level benefits, more rigorous evaluations and systematic reporting of Play Streets’ evaluations are needed.

Background Businesses and organizations involved in growing, distributing, and supplying food may face severe disruptions from natural and human-generated hazards, ranging from extreme weather to political unrest. Baltimore, Maryland, is developing policies to improve local food system organizations' ability to prepare for, respond to, and recover from disruptive events and ultimately to contribute to food system resilience.Objectives To identify factors that may be associated with organization-level food system resilience, how these factors may play out in disaster response, and how they may relate to organizations' confidence in their ability to withstand disruptive events.Design Semi-structured in-depth interviews with representatives of key food system businesses and organizations identified by means of stratified purposive sampling and snowball sampling.Participants/setting Representatives of 26 food system businesses and organizations in Baltimore stratified by two informant categories: organizations focused on promoting food access, such as governmental offices and nonprofits, and businesses and organizations involved in supplying and distributing food in Baltimore City, such as retailers, wholesalers, and producers.Analyses Interviews were analyzed using a phronetic iterative approach. Results The following 10 factors that may contribute to organization-level resilience were identified: formal emergency planning; staff training; staff attendance; redundancy of food supply, food suppliers, infrastructure, location, and service providers; insurance; and post-event learning. Organizations that were larger, better resourced, and affiliated with national or government partners typically demonstrated more resilience factors compared with smaller, independent, and nonprofit organizations.Conclusion To ensure reliable access to safe food for all people, food system organizations must strengthen their operations to safeguard against a variety of potential threats. This study's examination of factors that contribute to resilience can help food system organizations, researchers, and government officials identify priorities for investigating vulnerabilities in diverse operations and potential strategies to improve resilience in the face of ongoing and growing threats.

This cross-sectional study examines the association between state legalization of recreational cannabis and prevalence of maternal cannabis use during the preconception, prenatal, and postpartum periods.

To the Editor Juvenile myelomonocytic leukemia (JMML) is an aggressive myeloproliferative neoplasm of childhood with nearly half of all patients relapsing within 3 years [1,2]. More than 90% of JMML patients present with initiating mutations in NF1, KRAS, NRAS, RRAS, RRAS2, CBL, and PTPN11, all leading to hyperactivation of the Ras pathway [3]. Patients with additional molecular alterations including cytogenetic abnormalities, and in particular, point mutations in SETBP1 have inferior outcomes [4]. At present, hematopoietic stem cell transplantation (HSCT) is the only curative therapy, with the primary cause of death being relapse or progression to acute myeloid leukemia (AML) [5]. Recently, JMML patients who did not display Ras pathway mutations were found to have ALK and ROS1 fusions that were sensitive to ALK inhibition [6]. Given the poor overall survival of JMML patients even after intensive treatments such as HSCT, opportunities to implement precision medicine should be