Here is Mark allegedly "celebrating" the COVID-19 vaccine rollout. https://www.iheart.com/content/2020-12-16-mark-hoppus-celebrates-covid-19-vaccine-in-the-most-blink-182-way-ever/
Recently he announced his diagnosis https://pagesix.com/2021/06/23/blink-182s-mark-hoppus-announces-he-has-cancer/ https://www.youtube.com/watch?v=A3ZLX1swZPM
Now there is a chance this could be the case but we are unable to prove