Characteristics of Norovirus Food Poisoning Outbreaks in Korea in the 2000s

Norovirus food poisoning outbreaks in Korea (South) appeared in 2000s and have been increasing since then. We aimed to investigate the epidemiological features of norovirus food poisoning outbreaks in Korea over the past years (2002 ~ 2017), based on official food poisoning statistics and available reports, and to find their association with climate factors. Norovirus was the most common cause of food poisoning among known causative substances in Korea during the study period. More than one-third of the incidents occurred in group meal-service facilities, including school lunch programs. A few of these facilities used groundwater contaminated with noroviruses to wash / cook food, which contributed to outbreaks. Norovirus occurrences showed strong seasonality; cold and relatively dry winter air may help norovirus to flourish. Both norovirus genotypes GI and GII infectious to humans were detected, with GII becoming more prevalent than GI. According to our correlation analysis in connection with climate factors, average temperatures, the highest and lowest temperatures, precipitation, the number of rain days, and humidity showed a significant negative correlation with a monthly norovirus occurrence (p < 0.05). The lowest temperature and average temperature had higher coefficients of correlation, -0.377 and -0.376, respectively. The norovirus outbreaks in Korea showed complex etiological characteristics, although it more prevailed in wintertime, and are now considered as a major public health problem. The use of groundwater in group meal-service settings has a public health impact as well as norovirus concern, therefore groundwater used in food service facilities / business should be treated for safety.

Assessing the Relationship between District and State Policies and School Nutrition Promotion-Related Practices in the United States

School environments are an optimal setting to promote healthy student diets, yet it is unclear what role state and district policies play in shaping school contexts. This study examined how state and district policies are associated with school-reported practices for promoting student participation in school lunch programs. School nutrition manager data were obtained from the School Nutrition and Meal Cost Study’s (SNMCS) sample of 1210 schools in 46 states and the District of Columbia (DC) during school year 2014–2015. Relevant state laws and district policies were compiled and coded. Multivariable logistic and Poisson regressions, controlling for school characteristics, examined the relationship between state/district laws/policies and school practices. Compared to schools in districts or states with no policies/laws, respectively, schools were more likely to provide nutritional information on school meals (AOR = 2.59, 95% CI = 1.33, 5.05) in districts with strong policies, and to promote school meals at school events (AOR = 1.93, CI = 1.07, 3.46) in states with strong laws. Schools in states with any laws related to strategies to increase participation in school meals were more likely to seek student involvement in menu planning (AOR = 2.02, CI = 1.24, 3.31) and vegetable offerings (AOR = 2.00, CI = 1.23, 3.24). The findings support the association of laws/policies with school practices.

Middle School Students’ Perceptions of the Lunchroom: Implications for Future Interventions

The National School Lunch Program provides nutritious and inexpensive lunches, but low participation and food waste are challenges in many schools. Interventions aim to improve participation in the program, but little is known about how students’ perceptions affect their participation. This study explored how middle school students in a rural state perceive school food service staff, food served, and lunchroom atmosphere. An online survey was administered to middle school students at six schools participating in a larger lunchroom intervention. Mean perception scores were calculated for all measures. Multilevel logistic regression was used to examine the relationship between perceptions and consumption. Overall perceptions of staff, food, and atmosphere were positive, and students classified as school lunch eaters had more positive perceptions in all three areas than noneaters. Interventions to increase participation in school lunch programs and promote consumption of healthy food items should address multiple factors that contribute to school lunch participation.

What Do Parents Think About School Meals? An Exploratory Study of Rural Middle School Parents’ Perceptions

Interventions targeting school meals have been used to combat obesity in rural youth. Parents play a powerful role in childhood nutrition; however, we know little about parents’ perceptions of school meal programs. This study aimed to understand parents’ perceptions of school meal programs. Surveys were administered to middle school parents ( n = 576) at six schools in a rural state. We conducted univariate and multivariate analyses to measure parents’ overall perceptions of the school meals program and to identify differences in perceptions by their children’s participation in the Free and Reduced Price School Meals (F&RM) program. Parents had largely negative views of school meals but agreed that they met students’ needs. Results of the multivariate analysis revealed differences in perceptions by participation in F&RM including the relative importance of meal components. Including parents in meal-related experiences and decision making could improve their perceptions and increase children’s participation in school lunch programs.

Food Insecurity

Food plays an essential role in performance and well-being. Apart from its physiological necessity, food is also a source of pleasure. Since both biological needs for food and psychic satisfaction from food vary considerably among and within populations, coming up with precise, operationalizable measures of food security have proved problematic. Furthermore, the concept of food security encompasses not only current nutritional status but also vulnerability to future disruptions in one’s access to adequate and appropriate food. The complexity of the concept of food security has given rise to scores, if not hundreds, of different definitions of the term “food security.” As a result, there have also been variations in thinking about the proximate manifestations and direct and indirect causes and consequences of “food insecurity,” the complement to “food security.” Food security is commonly conceptualized as resting on three pillars that are inherently hierarchical: availability, access, and utilization. Some agencies, such as the United Nations Food and Agriculture Organization (FAO), have added a fourth dimension: stability. Food insecurity is often used interchangeably with the terms “hunger,” “undernutrition,” and “malnutrition.” Threats to food insecurity may be classified as either “covariate” or “idiosyncratic.” Based on these threats, various interventions have been implemented to promote food security by means of increasing availability (improving agricultural productivity), promoting access (economic growth and assistance programs such as food stamps or vouchers, food aid delivery, food banks, school lunch programs), or improving utilization (supplementary feeding programs, therapeutic feeding programs).