Mask use among pedestrians during the Covid-19 pandemic in Southwest Iran: an observational study on 10,440 people.

We concluded that the prevalence rate of face mask use in Ahvaz was fairly low especially in men and younger people. Hence, the observed rates probably cannot protect the community against COVID-19 spread. Therefore, it is important to implement educational programs as well as to establish laws and regulations governing the use of face masks in public places.