05 November 2020, Thuringia, Erfurt: "Masks off" is located on a construction fence at the trade fair grounds, where the "pro.vention" trade fair for corona infection protection will be held on 5 and 6 November. According to the organizers, it is the first trade fair in Germany to explicitly deal with pandemic protection. The show will present new products and services that will help to contain the pandemic and prevent infection chains. Among the focal points are air purification, corona tests, medical technology and software for holding conferences and events. Photo: Martin Schutt/dpa-Zentralbild/dpa