This is part 1 of the first episode of "McNeils". It's about Alex who gets sick and his sister Sophie who takes care of him and nurse until he is fresh again.
You can get the shirt from the episode on Teespring: https://teespring.com/an-apple-a-day-keeps-alex
Links:
Website: www.animatedcomedy.dk
YouTube: www.youtube.com/c/animatedcomedychannel-acc
Instagram: https://www.instagram.com/animated_comedy/