I don't think the spikes *propagate*: the spikes contain no instructions for making new spikes. Also, say, if you cough or sneeze, the concentration of spikes is diluted in the air: and gets cut down further by the nasal passages (nose hair, mucus, immune defenses in the blood going through the nose).
I saw the acupuncturist's post: creepy, reminiscent of the stillbirths etc.