See No Evil...

For all its elegance, the Lazarus virus still has weaknesses.

Infected hosts immediately lose object permanence - the ability to track the displacement of invisible targets, an element of cognition in the prefrontal cortex.

Such traits are observable in infants as young as eight months old, as they develop understandings of causality and goal direction. Hide a toy or treat from them, they will actively seek it out.

The infected do not have that compulsion. Field studies have shown that breaking line of sight, even for a few seconds, could save your life.

(From: LZRS Behavioral Genetics, Dr. Nicole Gilbert, PhD)