Coronavirus signs for businesses and office. Place safety signs in areas where your message needs to be seen. Use for social distancing and reminding everyone of proper hygiene Preparing Workplaces for COVID-19 messaging. Businesses and employers can prevent and slow the spread of COVID-19. Employers should plan to respond in a flexible way to varying levels of disease transmission in the community and be prepared to refine their business response plans as needed. These signs are an essential visual communication tool to accomplish this proper messaging.