"generatio spontanea" as a logical fallacy

After a gun shots to the head, is the bleeding as a symptom "spontaneously generated", or, is there any causality with the projectile bullet that travels at 3000 km/h interacting with the head? What about coercive government, is the disturbed decision making as a symptom "spontaneously generated", or, is there any causality with the physical violence exerted onto the individual (much like in the case of the bullet to the head)?