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Although established theoretical models suggest that race differences in physical health are partially explained by exposures to environmental toxins, there is little empirical evidence to support these processes. We build on previous research by formally testing whether black–white differences in self-rated physical health are mediated by the embodiment of environmental toxins.

Using cross-sectional data from the National Health and Nutrition Examination Surveys (2007–2008), we employ ordinary least squares regression to model environmental toxins (from urine specimens) and overall self-rated health as a function of race and ethnicity. We employ the Sobel test of indirect effects to formally assess mediation.

Our results show that non-Hispanic black respondents tend to exhibit higher levels of total toxins, lead, and cadmium in their urine and poorer physical health than non-Hispanic whites, even with adjustments for age, gender, and socioeconomic status (SES). Our mediation analyses suggest that blacks may exhibit poorer physical health than whites because they tend to embody higher levels of cadmium.

Research limitations include cross-sectional data and restricted indicators of SES.

This study contributes to previous work by bridging the fields of social epidemiology and environmental inequality and by formally testing established theoretical models.

The disparities of COVID-19 vaccination rates between the rural and urban areas have become apparent during this pandemic. There is a need to understand the root causes of vaccine hesitancy demonstrated by the rural population to increase coverage and to contain the disease spread throughout the United States. This study aimed to explore other factors influencing vaccine hesitancy among rural dwellers besides the geography-related barriers such as poor health care access and individuals having no or suboptimal insurance coverage.

By reviewing existing data and literature about vaccination, health literacy, and behaviors, and prevailing ideologies, we discuss the potential causes of vaccine hesitancy in rural areas that could create barriers for successful public health efforts related to vaccine coverage and provide suggestions to ameliorate the situation.

Geography-related barriers, health literacy, and preconceived notions are key determinants of adopting healthy behaviors and complying with public health authorities' recommendations among rural individuals during a public-health crisis. We argue that ideology, which is much deeper than preconception or misconception on vaccination, should be incorporated as a key factor to redefine the term “vulnerable populations” in public health research.

The limitation of our study is that we have not found an effective way to encourage the populations who hold conservative religious and political ideologies to join the efforts for public health. Even though geography-related barriers may strongly impact the rural dwellers in achieving optimal health, the various forms of ideologies they have toward certain health behaviors cannot be discounted to understand and address vaccine-related disparities in rural areas. There is a need to redefine the term “vulnerable population” particularly as it relates to rural areas in the United States. During large-scale public health disasters, scholars and public health authorities should consider the ideologies of individuals, in addition to other factors such as race/ethnicity, area of residence (rural vs. urban), and socioeconomic factors influencing the existing vulnerabilities and health disparities.

The novel coronavirus, COVID-19, which emerged in 2019 and quickly spread to the United States, resulted in widespread closure of PreK-12 schools and universities and a rapid transition to online learning. There are concerns about how students in high-needs school districts will engage with online learning, given the limited access many disadvantaged students have to Internet and computers. Accordingly, the purpose of this study is to determine teacher perceptions of students' access and participation to online learning, as well as concerns about educational outcomes among different groups of learners.

The authors surveyed 300 K-12 teachers in NY state about the tools and accommodations they employed in their online teaching, whether their students were participating in the online learning and the reasons for their lack of participation.

Respondents reported that nearly 30% of all of their students were not regularly completing their assignments. Students in high-needs districts were significantly more likely to not complete their work. Teachers reported being very concerned about their students' educational outcomes, particularly students with disabilities (SWDs) and English language learners (ELLs). Respondents also provided suggestions for improving educational access to online learning in the future.

No published research has yet examined student compliance in online learning during an emergency and, in particular, during this unprecedented time of the COVID-19 pandemic and months-long stay-at-home orders.