Space heartworms

[Grayshift]

Got a bottle of these while I was testing infection thresholds. They don't do anything. They appear to have a chance per life tick to flat out remove the target's heart - medical scanner came up with cardiac abscondment several times - but the patient would mysteriously regrow their heart very next time I scanned them. No messages or anything, the cardiac abscondment disease just disappears. Tried the last 10 units on myself, my heart vanished no less than three times and came back, never took a single point of damage.