vaccine-induced adverse event hypotonic-hyporesponsive episode AE 低反应性发作 10021121 http://en.volupedia.org/wiki/Hypotonic-hyporesponsive_episode This is an AE which is defined as sudden onset of poor muscle tone, reduced consciousness, and pale or bluish skin occurring within 48 hours after vaccination, most commonly pertussis vaccination. QY, JX, HY