Many Long Covid advocates are using Blip Billboards, a platform that allows people to submit digital billboard designs to be shown by billboard owners across the country. Sophie Dimitriou, a Berlin-based graphic designer who developed Long Covid in 2023, started Berlin Buyers Club, one of several patient advocacy groups renting out billboard space to share messages about the impact of Long Covid. The rejection of billboard designs could constitute discrimination against Long Covid under the ADA, said Nate Crippes, public affairs supervising attorney at the Disability Law Center in Utah, if billboard owners are denying services to disabled people.