Covid-19 pandemic implications for food and nutrition security in Brazil.

The emergence of COVID-19 in Brazil further explained the massive discrepancy between different social realities coexisting in the country, rekindling the discussions about food and nutrition security, similarly to what has been happening in other countries facing the same pandemic situation. In this paper, we argue that the risks to hunger and food security in Brazil have been present since 2016 and are now being exacerbated due to the emergence of the COVID-19 epidemic. This situation requires knowing the extent and magnitude of the issue and articulation of measures in the three governmental spheres(federal, municipal and state) to ensure access to adequate and healthy food and reduce the disease's adverse effectson the diet, health, and nutrition among the most vulnerable people.

Quaternary prevention: a concept relevant to public health? A bibliometric and descriptive content analysis.

According to the World Organization of Family Doctors (WONCA), quaternary prevention (P4) is a recent concept that aims to prevent medical overuse. Thus, this study aimed to measure and map research output on P4 as outline research trends, evaluating its current international status through a bibliometric and descriptive content analysis. We reviewed scientific articles on P4 recorded in PubMed, LILACS, SciELO or CINAHL with the outcomes: publication year, first authors' name and nationality, journals' name, country and ranking, publication language, used methods and main reported subjects.