The outbreak is bad and it must be stopped! Trap the outbreak by dispensing antidote cells to confine their movement, they will flail around and use all their energy until they become husks of their former selves.
Use the left mouse button to dispense antidote in order to trap the outbreak. Be careful not to run out of antidote!
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.