Here is the full list of all 22 The Happy Little Virus achievements.
Found new weapon
Won game with a betrayal
Won game with the destruction of organised religion
Killed 100 antivirus drones
Killed 100 laser antiviruses
Killed 100 spiky antiviruses
Killed 20 holy antiviruses
Drained 6 healing resistors
Drained 6 charging resistors
Complete Mission: Cancer Research Nights
Trap 100 things in bubbles
Trap 300 things in bubbles
Design 10 Viruses
Spend no time designing a virus
Fight the bull flawlessly
Beat 10 levels without being hit
Get resurrected
Get resurrected a lot