TOPSHOT - Demonstrators are engulfed by smoke, during a national day of protest against the compulsory Covid-19 vaccination for certain workers and the mandatory use of the health pass called for by the French government in Paris on August 7, 2021. - Protesters took to the streets across France on Saturday for the fourth weekend in a row to rally against a new health pass needed to enter a cafe or travel on an inter-city train, two days before the new rules come into force. A valid health pass is generated by two jabs from a recognised vaccine, a negative coronavirus test or a recent recovery from infection and has been validated for cafes and restaurants by the Constitutional Council on August 5, 2021. (Photo by GEOFFROY VAN DER HASSELT / AFP)