As the world tries to cope with the devastating effects of the COVID-19 pandemic and emerging variants of the virus, COVID-19 vaccination has become an even more critical tool toward normalcy. The effectiveness of the vaccination program and specifically vaccine uptake and coverage, however, is a function of an individual’s knowledge and individual opinion about the disease and available vaccines. This study investigated the knowledge, attitudes, and resulting community practice(s) associated with the new COVID-19 variants and vaccines in Bangladesh, Colombia, India, Malaysia, Zimbabwe, and the USA. A cross-sectional web-based Knowledge, Attitudes, and Practices (KAP) survey was administered to respondents living in six different countries using a structured and multi-item questionnaire. Survey questions were translated into English, Spanish, and Malay to accommodate the local language in each country. Associations between KAP and a range of explanatory variables were assessed using univariate and multiple logistic regression. A total of 781 responses were included in the final analysis. The Knowledge score mean was 24 (out of 46), Attitude score 28.9 (out of 55), and Practice score 7.3 (out of 11). Almost 65% of the respondents reported being knowledgeable about COVID-19 variants and vaccination, 55% reported a positive attitude toward available COVID-19 vaccines, and 85% reported engaging in practices that supported COVID-19 vaccination. From the multiple logistic models, we found post-graduate education (AOR = 1.83, 95% CI: 1.23–2.74) and an age range 45–54 years (AOR = 5.81, 95% CI: 2.30–14.69) to be significantly associated with reported COVID-19 knowledge. In addition, positive Attitude scores were associated with respondents living in Zimbabwe (AOR = 4.49, 95% CI: 2.04–9.90) and positive Practice scores were found to be associated with people from India (AOR = 3.68, 95% CI: 1.15–11.74) and high school education (AOR = 2.16, 95% CI: 1.07–4.38). This study contributes to the identification of socio-demographic factors associated with poor knowledge, attitudes, and practices relating to COVID-19 variants and vaccines. It presents an opportunity for collaboration with diverse communities to address COVID-19 misinformation and common sources of vaccine hesitancy (i.e., knowledge, attitudes, and practices).

Highly Pathogenic Avian Influenza (HPAI) subtype H5N1 poses severe threats to both animals and humans. Investigating where, when and why the disease occurs is important to help animal health authorities develop effective control policies. This study takes into account spatial and temporal occurrence of HPAI H5N1 in the Red River Delta of Vietnam. A two-stage procedure was used: (1) logistic regression modeling to identify and quantify factors influencing the occurrence of HPAI H5N1; and (2) a geostatistical approach to develop monthly predictive maps. The results demonstrated that higher average monthly temperatures and poultry density in combination with lower average monthly precipitation, humidity in low elevation areas, roughly from November to January and April to June, contribute to the higher occurrence of HPAI H5N1. Provinces near the Gulf of Tonkin, including Hai Phong, Hai Duong, Thai Binh, Nam Dinh and Ninh Binh are areas with higher probability of occurrence of HPAI H5N1.

Background: Food insecurity and social isolation among older adults are pressing public health concerns that significantly impact physical and mental health outcomes. The COVID-19 pandemic exacerbated these challenges while forcing innovative adaptations to traditional congregate meal programs. Objective: This study examined the effectiveness of Kūpuna U, an alternative flexible congregate meal program comprising three models (virtual, hybrid, and traditional), in addressing food insecurity, loneliness, and self-rated health among older adults in Hawaiʻi. Methods: A quasi-experimental study with non-equivalent groups analyzed secondary program evaluation data. Participants (N = 270, follow-up N = 116) self-selected into virtual (grab-and-go meals + online activities), hybrid (grab-and-go meals + virtual and in-person activities), or traditional (in-person congregate meals + in-person activities) models. Food insecurity (6-item scale), loneliness (UCLA 3-item scale), and self-rated health (5-point scale) were measured at the baseline and 6-month follow-up. Results: The Virtual group showed significant improvements in food insecurity (baseline: 1.73 to follow-up: 0.04, p < 0.001) and self-rated health (baseline: 2.92 to follow-up: 3.72, p = 0.005). The Hybrid group demonstrated a significant increase in loneliness (baseline: 4.25 to follow-up: 5.00, p = 0.024). The Traditional group showed no significant changes in any outcome measures. Analysis of variance (ANOVA) revealed significant between-group differences for food insecurity (F = 9.047, p < 0.001) and self-rated health (F = 5.814, p = 0.004) change scores. Conclusions: The Virtual model demonstrated a superior effectiveness in improving food security and self-rated health outcomes. However, self-selection bias limits causal inferences. These findings suggest that flexible, technology-enhanced nutrition programs may effectively serve older adults with mobility or transportation barriers while maintaining program benefits.

Regular physical activity (PA) is essential for healthy aging. For older adults residing in urban areas, access to urban green space (UGS) can help increase PA levels. This systematic review examined the association between availability, accessibility, and attractiveness of the UGS on PA among older adults. PubMed, CINAHL, and Web of Science were searched for articles published 2016–2024 that used quantitative methods to explore associations between the qualities of UGS and measures of PA in this demographic. Findings from nine studies from Europe, China, Hong Kong, and Australia were synthesized by availability, accessibility, and attractiveness domains. For availability, the presence and size of UGS were positively associated with older adults’ PA in several studies, whereas UGS proximity was inconsistently associated with PA. For accessibility, infrastructure-related features such as trail length were positively associated with PA, but findings for park features and safety were mixed. Results were also inconsistent for attractiveness; some land-cover and amenity features showed positive associations, while others showed no clear relationship with PA. In addition to variability in associations, there was great heterogeneity across studies in age inclusion criteria (e.g., 45+ vs. 65+), participant inclusion criteria, setting, operationalization of UGS quality, PA measures, and study rigor, reducing the ability to draw conclusions about the association between UGS qualities and PA. Although findings can begin to inform urban planners, public health professionals, and policymakers in designing UGS to promote PA in older adults, the field would benefit from more consistent definitions and measures of UGS qualities and PA.