Despite a sizable population and modest status as a low middle-income country, Vietnam has recorded a low COVID-19 fatality rate that rivals those of richer countries with far larger spending on health. We offer an early review of the emerging literatures in public health and economics on the...

The effect of face masks on Covid-19 transmission is crucial for the health of populations. The effectiveness of face masks in reducing the transmission of Covid-19 varies across primary evidence. To perform a quantitative meta-analysis, we collected 258 estimates from 44 primary studies...