An emergency, especially an epidemic or a pandemic, can be challenging for individuals and communities. Sudden and unpredictable situations, growing fears of health hazards, and psychological impact of deteriorating physical conditions and increasing number of deaths, can affect their...

Inequality in vaccination has been perceived as a research problem in the recent COVID-19 pandemic. So far, this type of inequality has been investigated in the particular context of race, ethnicity, gender, regions in different parts of the world, with no study conducted so far in the context...

This study develops a computer simulation in understanding the flow of the COVID-19 in Germany between January 2020 and July 2020. This aims to analyze not only the flow of the COVID-19 but also the efficacy of taken measures during the given period. The computer model is based on the SEIR...

We document four facts about the worldwide COVID-19 pandemic that are relevant for those studying the impact of nonpharmaceutical interventions (NPIs) on COVID-19 transmission. First, across all countries and U.S. states that we study, the growth rates of daily deaths from COVID-19 fell from a...

How can the world reach herd immunity against COVID-19 before the second anniversary of the pandemic, or March 2022? A study of vaccine demand and supply answers this question. A target of vaccinating 60 percent of the population in each country by March 2022 is likely sufficient to achieve...

Food supply and demand chains are highly sensitive to global shocks. Unstable and sudden food price hikes cause serious malnutrition problems and increase the number of food-insecure people, especially in developing countries. Using FAO Food Price Index (FFPI), this study makes one of the first...

This article assesses the likely impacts of the COVID-19 pandemic on mortality and birth rates in 2020, in Brazil. Data on the historical series of births and deaths, available on the Transparency of the Civil Registry, as of 2015 are presented. Population annual totals, used for the country,...

This paper shows an elaborated model to try to stop the spread of COVID-19 cases everywhere and anytime. The main objective of this paper is to implement an alternative COVID-19 prevention model. This new model is entitled “the Free COVID-19 Areas (FCAs).” The FCA offers a serial of steps...

The COVID-19 pandemic has delivered an unprecedented shock to the United States and the world. It is unclear precisely how long the twin crises, epidemiological and economic, will last, and it is difficult to gauge the extent and direction of the changes in American life these crises will cause....

Cities are shaped by the strength of agglomeration and dispersion forces. We show that the COVID-19 pandemic has re-introduced disease transmission as a dispersion force in modern cities. We use detailed housing data to study the impact of the COVID-19 pandemic on the location demand for...