Empirical analysis on the efficiency of masks and 70% alcohol in fighting Coronavirus: an analysis for the service sector

In 2020, the Covid-19 pandemic began and several measures were established to contain the contagion of the disease, including the use of masks and 70% alcohol. In Brazil, the service sector suffered the greatest impact of the measures adopted and, in this context, the investigation aimed to verify whether the use of masks and 70% alcohol was effective in reducing the contamination of workers in this sector. When estimating the probability ratio, using the PNAD Covid 2020, the results show that the use of masks and 70% alcohol reduces the probability of contamination by 54.70%.