Stock Photo - 16 September 2021, Lower Saxony, Hanover: Corona sniffer dog Cordula (Bernese Mountain Dog) sits in front of Daniel Jannett (l-r), dog handler at the company AWiAS Aviation Services, Björn Thümler (CDU), Minister for Science and Culture in Lower Saxony, Holger Volk, Head of the Clinic for Small Animals at the University of Veterinary Medicine Hannover, and Gerhard Greif, President of the University of Veterinary Medicine Hannover, before a press conference. As part of a feasibility study, trained corona sniffer dogs are being used for the first time in a four-part concert series in Hanover. Photo: Moritz Frankenberg/dpa. - Hanover/Lower Saxony/Germany