幼儿中枢神经系统较其他系统发育慢,大脑功能不稳定,极易因体内、体外条件变化而发生紊乱。对药物、各种病原微生物产生的毒素十分敏感。因此,当幼儿患了痢疾、肺炎、猩红热、百日咳、伤寒、霍乱等感染性疾病时,就会出现发热、惊厥、昏迷、抽搐等神经症状。有些患儿虽然经过治疗达到了 Childhood central nervous system development than other slow, unstable brain function, easily due to in vivo and in vitro changes in conditions and disorder. The drug, a variety of pathogenic microorganisms toxins are very sensitive. Therefore, when children have diarrhea, pneumonia, scarlet fever, whooping cough, typhoid, cholera and other infectious diseases, there will be fever, convulsions, coma, convulsions and other neurological symptoms. Although some children have been treated