Background: A growing body of scientific evidence suggests that face masks can slow the spread of COVID-19 and save lives, but mask usage remains low across many parts of the world, and strategies to increase mask usage remain untested and unclear. Methods: We conducted a cluster-randomized...

A randomized-trial of community-level mask promotion in rural Bangladesh during COVID-19 shows that the intervention tripled mask usage and reduced symptomatic SARS-CoV-2 infections, demonstrating that promoting community mask-wearing can improve public health.

This study paper examines the effect of dividend declaration on banking sector stock return in DSE. A sample of 10 listed banking companies has been examined for the time period of 2008, 2009 and 2010. Our findings show that there are some impacts of dividend declaration on the stock return. The...