A DEADLY PANDEMIC HAS HIT THIS COLONY OF DOTS!

There are 50 dots. How many of them can you save?

• White dots show no symptoms. They become infected by colliding with an infected dot or, sometimes, at random.
• Touch a non-infected white dot with your touchpad or mouse pointer to give it a blue face mask. Blue dots cannot be infected. They are safe and will live forever.
• Red dots are infected and have symptoms. They are infectious for a while after they first show symptoms. Some red dots die and turn black.
• Black dots have died. Their ghosts wander around and frighten the other dots, causing collisions.

The game ends when all the dots are either safe or deceased.