14.12.2020, Singapore, , Singapore - At a petrol station in a residential area, an illuminated sign with the words 'Wear A Mask' indicates that masks are compulsory in public places to prevent further spread of the coronavirus (Covid-19) during the global corona pandemic. High-rise apartment buildings rise in the background.. 0SL201214D007CAROEX.JPG [MODEL RELEASE: NOT APPLICABLE, PROPERTY RELEASE: NO (c) caro images / Schuelke, http://www.caro-images.com, [email protected] - In case of using the picture for any purpose, please contact the agency - the picture is subject to royalty!]