Immunity against Influenza Type A among 4-14-Years-Old Children in Kerman, Iran

Abstract: Background & Aims: Influenza viruses are important causes of mortality and morbidity in children. The aim of this study was to assess the presence of antibodies (IgG) against Influenza A in children in Kerman, Iran. Methods: In a cross-sectional study, 200 children aged 4-14 years referred to Besaat Clinic and Afzalipour hospital for diseases other than influenza were enrolled. Sera were tested for anti influenza A IgG with NovaLisa ELISA kits (NOVATEC, Germany). Results: Anti-Influenza virus A IgG was detected in 12% (24/200) of the sera. This group had the highest mean age [9.62 (7-12) years]. Among studied variables, only age was related to seropositivness for anti-Influenza A serotypes. Conclusion: The majority of children aged 4-14 years in Kerman had no immunity to Influenza A. So, they are at risk for influenza and its morbidity during possible epidemics of this infection. Keywords: Influenza A, Immunity, Childre

Sharing your assets? A holistic review of the sharing economy

Even though academics and practitioners extensively apply the notion of the sharing economy (SE), the conceptualization and the literature construction remained disjointed and dispersed due to the lack of a rigorous attempt to understand the core concept of the SE. This concept is multidimensional, which makes its investigation essential for practitioners and academics. Based on a 15-year data set collected from the Web of Science database, our paper seeks to provide a pervasive science plot of the intellectual structure of the SE field. A bibliometric review method was used by studying documents published from 2005 to 2020, using the VOSviewer, Bibexcel, SPSS, and GunnMap2 software. Providing an overview of articles, authors, the most influential journals, and themes of research, we contribute to the literature on the SE by identifying and proposing six research groups in MDS analysis, six research clusters in HCA analysis, and future study directions. Eventually, the research acknowledges the theoretical contribution, the limits of the present study, and recommends further study directions

The evolution of food security: where are we now, where should we go next?

Food security is one of the most challenging topics globally; however, the concept of food security has taken on additional dimensions that are general and are less detailed. This study aims to identify the intellectual structure of food security research and the changes in this structure. This paper analyzed 3169 documents from the Web of Science database through a bibliometric review. A review of the published documents shows an increasing trend over the past 46 years. In accordance with co-occurrence analysis, 125 keywords were grouped into five clusters: food security and sustainable development; food security and socioeconomic factors; food security policy and governance; coping strategies for poverty, inequality, and hunger; and modern food security management. This study identifies four streams within food security research: sustainability and environmental, socioeconomic, cultural, and political factors. The paper concludes that even though food security might investigate many significant areas, other new dimensions should still be considered. Further gaps in the literature emerge that present avenues for future research directions. Reviewing indicators and techniques of food security assessment and identifying high-risk groups should be a priority

Immunity against Influenza Type A among 4-14-Years-Old Children in Kerman, Iran

Abstract: Background & Aims: Influenza viruses are important causes of mortality and morbidity in children. The aim of this study was to assess the presence of antibodies (IgG) against Influenza A in children in Kerman, Iran. Methods: In a cross-sectional study, 200 children aged 4-14 years referred to Besaat Clinic and Afzalipour hospital for diseases other than influenza were enrolled. Sera were tested for anti influenza A IgG with NovaLisa ELISA kits (NOVATEC, Germany). Results: Anti-Influenza virus A IgG was detected in 12% (24/200) of the sera. This group had the highest mean age [9.62 (7-12) years]. Among studied variables, only age was related to seropositivness for anti-Influenza A serotypes. Conclusion: The majority of children aged 4-14 years in Kerman had no immunity to Influenza A. So, they are at risk for influenza and its morbidity during possible epidemics of this infection. Keywords: Influenza A, Immunity, Childre