Let me introduce you to IMMUNITY BINGO! How to play: IMMUNITY BINGO. Print this cute immunity bingo card. Using a pen/marker HEART all the things you currently do to keep your immunity strong. If you get 5 across in a row or 4 down in a row, you’re a winner! B-I-N-G-O! BONUS BINGO: Even better than traditional BINGO…try to fill the card with as many hearts as you can!